diff --git a/easyflow-ui-admin/app/src/views/ai/agents/AgentDesigner.vue b/easyflow-ui-admin/app/src/views/ai/agents/AgentDesigner.vue
index 141d141d..dffb17c9 100644
--- a/easyflow-ui-admin/app/src/views/ai/agents/AgentDesigner.vue
+++ b/easyflow-ui-admin/app/src/views/ai/agents/AgentDesigner.vue
@@ -6,7 +6,7 @@ import type {
   AgentValidationIssue,
 } from './types';
 
-import { computed, onMounted, ref } from 'vue';
+import { computed, onActivated, onDeactivated, onMounted, ref } from 'vue';
 import { useRoute, useRouter } from 'vue-router';
 
 import { ElMessage, ElMessageBox } from 'element-plus';
@@ -23,6 +23,8 @@ import {
 import {
   getAgentDetail,
   getAgentModels,
+  getMcpPage,
+  getMcpTools,
   getPublishedKnowledgeList,
   saveAgent,
   submitAgentOfflineApproval,
@@ -35,6 +37,7 @@ import AgentStudioCanvas from './components/agent-studio/AgentStudioCanvas.vue';
 import AgentCommandBar from './components/AgentCommandBar.vue';
 import AgentInspectorPanel from './components/AgentInspectorPanel.vue';
 import { useAgentDesignerState } from './composables/useAgentDesignerState';
+import { createMcpToolLoader } from './mcpToolLoader';
 
 const route = useRoute();
 const router = useRouter();
@@ -56,10 +59,13 @@ const {
   validate,
 } = useAgentDesignerState();
 
-const pageLoading = ref(false);
+const pageLoading = ref(true);
+const contentReady = ref(false);
+const canvasActive = ref(true);
 const saveLoading = ref(false);
 const offlineLoading = ref(false);
 const publishLoading = ref(false);
+const mcpToolsLoading = ref<Record<string, boolean>>({});
 const issues = ref<AgentValidationIssue[]>([]);
 const categories = ref<AgentOption[]>([]);
 const models = ref<AgentOption[]>([]);
@@ -67,6 +73,10 @@ const knowledges = ref<AgentOption[]>([]);
 const workflows = ref<AgentOption[]>([]);
 const pluginTools = ref<AgentOption[]>([]);
 const mcps = ref<AgentOption[]>([]);
+const fetchMcpToolResource = createMcpToolLoader(async (id) => {
+  const res = await getMcpTools(id);
+  return res.errorCode === 0 ? res.data : undefined;
+});
 
 const isNew = computed(() => String(route.params.id || '') === 'new');
 const publishText = computed(() => {
@@ -116,14 +126,23 @@ const offlineDisabled = computed(() => {
 });
 
 onMounted(async () => {
-  pageLoading.value = true;
+  void loadDeferredOptions();
   try {
-    await Promise.all([loadOptions(), loadAgent()]);
+    await Promise.all([loadCriticalOptions(), loadAgent()]);
   } finally {
+    contentReady.value = true;
     pageLoading.value = false;
   }
 });
 
+onActivated(() => {
+  canvasActive.value = true;
+});
+
+onDeactivated(() => {
+  canvasActive.value = false;
+});
+
 async function loadAgent() {
   if (isNew.value) {
     reset();
@@ -191,13 +210,33 @@ function syncNavTitle(title: string, options: { force?: boolean } = {}) {
   });
 }
 
-async function loadOptions() {
-  const [categoryRes, modelRes, knowledgeRes, workflowRes, pluginRes, mcpRes] =
-    await Promise.all([
-      api.get('/api/v1/agentCategory/visibleList', {
-        params: { sortKey: 'sortNo', sortType: 'asc' },
-      }),
-      getAgentModels(),
+async function loadCriticalOptions() {
+  const [categoryResult, modelResult] = await Promise.allSettled([
+    api.get('/api/v1/agentCategory/visibleList', {
+      params: { sortKey: 'sortNo', sortType: 'asc' },
+    }),
+    getAgentModels(),
+  ]);
+
+  if (categoryResult.status === 'fulfilled') {
+    categories.value = (categoryResult.value.data || []).map((item: any) => ({
+      label: item.categoryName || item.name,
+      value: String(item.id),
+      raw: item,
+    }));
+  }
+  if (modelResult.status === 'fulfilled') {
+    models.value = (modelResult.value.data || []).map((item: any) => ({
+      label: item.title || item.name,
+      value: String(item.id),
+      raw: item,
+    }));
+  }
+}
+
+async function loadDeferredOptions() {
+  const [knowledgeResult, workflowResult, pluginResult, mcpResult] =
+    await Promise.allSettled([
       getPublishedKnowledgeList(),
       api.get('/api/v1/workflow/page', {
         params: { pageNumber: 1, pageSize: 200 },
@@ -205,37 +244,37 @@ async function loadOptions() {
       api.get('/api/v1/plugin/pageByCategory', {
         params: { pageNumber: 1, pageSize: 200, category: 0 },
       }),
-      api.get('/api/v1/mcp/pageTools', {
-        params: { pageNumber: 1, pageSize: 200, status: 1 },
-      }),
+      getMcpPage(),
     ]);
 
-  categories.value = (categoryRes.data || []).map((item: any) => ({
-    label: item.categoryName || item.name,
-    value: String(item.id),
-    raw: item,
-  }));
-  models.value = (modelRes.data || []).map((item: any) => ({
-    label: item.title || item.name,
-    value: String(item.id),
-    raw: item,
-  }));
-  knowledges.value = (knowledgeRes.data || []).map((item: any) => ({
-    label: item.title || item.name,
-    value: String(item.id),
-    raw: item,
-  }));
-  workflows.value = (
-    (workflowRes.data?.records || workflowRes.data || []) as any[]
-  ).map((item) => ({
-    label: item.title || item.name,
-    value: String(item.id),
-    raw: item,
-  }));
-  pluginTools.value = flattenPluginTools(
-    pluginRes.data?.records || pluginRes.data || [],
-  );
-  mcps.value = mapMcpOptions(mcpRes.data?.records || mcpRes.data || []);
+  if (knowledgeResult.status === 'fulfilled') {
+    knowledges.value = (knowledgeResult.value.data || []).map((item: any) => ({
+      label: item.title || item.name,
+      value: String(item.id),
+      raw: item,
+    }));
+  }
+  if (workflowResult.status === 'fulfilled') {
+    workflows.value = (
+      (workflowResult.value.data?.records ||
+        workflowResult.value.data ||
+        []) as any[]
+    ).map((item) => ({
+      label: item.title || item.name,
+      value: String(item.id),
+      raw: item,
+    }));
+  }
+  if (pluginResult.status === 'fulfilled') {
+    pluginTools.value = flattenPluginTools(
+      pluginResult.value.data?.records || pluginResult.value.data || [],
+    );
+  }
+  if (mcpResult.status === 'fulfilled') {
+    mcps.value = mapMcpOptions(
+      mcpResult.value.data?.records || mcpResult.value.data || [],
+    );
+  }
 }
 
 function flattenPluginTools(list: any[]): AgentOption[] {
@@ -269,6 +308,56 @@ function mapMcpOptions(list: any[]): AgentOption[] {
   }));
 }
 
+async function loadMcpToolsForOption(id: number | string) {
+  const key = String(id || '').trim();
+  if (!key || mcpToolsLoading.value[key]) return;
+
+  mcpToolsLoading.value = {
+    ...mcpToolsLoading.value,
+    [key]: true,
+  };
+  try {
+    const resource = await fetchMcpToolResource(key);
+    if (!resource) return;
+
+    const currentOption = mcps.value.find((item) => String(item.value) === key);
+    const mergedResource = {
+      ...currentOption?.raw,
+      ...resource,
+      tools: Array.isArray(resource.tools) ? resource.tools : [],
+    };
+    if (currentOption) {
+      mcps.value = mcps.value.map((item) =>
+        String(item.value) === key
+          ? {
+              ...item,
+              label:
+                resource.title || resource.name || currentOption.label || 'MCP',
+              raw: mergedResource,
+            }
+          : item,
+      );
+    }
+    state.toolBindings.forEach((binding) => {
+      if (
+        String(binding.toolType || '').toUpperCase() === 'MCP' &&
+        String(binding.targetId || '') === key
+      ) {
+        binding.resourceSummary = {
+          ...binding.resourceSummary,
+          ...mergedResource,
+        };
+      }
+    });
+  } catch (error) {
+    console.error('加载 MCP 工具失败', error);
+  } finally {
+    const nextLoading = { ...mcpToolsLoading.value };
+    delete nextLoading[key];
+    mcpToolsLoading.value = nextLoading;
+  }
+}
+
 async function handleAdd(kind: AgentCapabilityKind) {
   if (kind === 'knowledge') {
     addKnowledgeNode();
@@ -417,43 +506,48 @@ function handleCloseTryout() {
 
 <template>
   <div v-loading="pageLoading" class="agent-designer">
-    <AgentStudioCanvas
-      :state="state"
-      :knowledge-options="knowledges"
-      :mcp-options="mcps"
-      :plugin-options="pluginTools"
-      :selected-node-id="state.selectedNodeId"
-      :workflow-options="workflows"
-      @select="handleSelectNode"
-    />
-    <AgentInspectorPanel
-      :state="state"
-      :models="models"
-      :categories="categories"
-      :knowledges="knowledges"
-      :workflows="workflows"
-      :plugin-tools="pluginTools"
-      :mcps="mcps"
-      :issues="issues"
-      @change="markDirty"
-      @remove-capability="removeSelectedCapability"
-      @close-tryout="handleCloseTryout"
-      @select-issue="handleSelectIssue"
-    />
-    <AgentCommandBar
-      :save-loading="saveLoading"
-      :publish-loading="publishLoading"
-      :publish-disabled="publishDisabled"
-      :publish-text="publishText"
-      :offline-disabled="offlineDisabled"
-      :offline-loading="offlineLoading"
-      :offline-visible="offlineVisible"
-      @add="handleAdd"
-      @save="handleSave()"
-      @offline="handleOffline"
-      @publish="handlePublish"
-      @tryout="handleTryout"
-    />
+    <template v-if="contentReady">
+      <AgentStudioCanvas
+        :active="canvasActive"
+        :state="state"
+        :knowledge-options="knowledges"
+        :mcp-options="mcps"
+        :plugin-options="pluginTools"
+        :selected-node-id="state.selectedNodeId"
+        :workflow-options="workflows"
+        @select="handleSelectNode"
+      />
+      <AgentInspectorPanel
+        :state="state"
+        :models="models"
+        :categories="categories"
+        :knowledges="knowledges"
+        :workflows="workflows"
+        :plugin-tools="pluginTools"
+        :mcps="mcps"
+        :mcp-tools-loading="mcpToolsLoading"
+        :issues="issues"
+        @change="markDirty"
+        @remove-capability="removeSelectedCapability"
+        @close-tryout="handleCloseTryout"
+        @load-mcp-tools="loadMcpToolsForOption"
+        @select-issue="handleSelectIssue"
+      />
+      <AgentCommandBar
+        :save-loading="saveLoading"
+        :publish-loading="publishLoading"
+        :publish-disabled="publishDisabled"
+        :publish-text="publishText"
+        :offline-disabled="offlineDisabled"
+        :offline-loading="offlineLoading"
+        :offline-visible="offlineVisible"
+        @add="handleAdd"
+        @save="handleSave()"
+        @offline="handleOffline"
+        @publish="handlePublish"
+        @tryout="handleTryout"
+      />
+    </template>
   </div>
 </template>
 
diff --git a/easyflow-ui-admin/app/src/views/ai/agents/api.ts b/easyflow-ui-admin/app/src/views/ai/agents/api.ts
index 0532368e..80ac3956 100644
--- a/easyflow-ui-admin/app/src/views/ai/agents/api.ts
+++ b/easyflow-ui-admin/app/src/views/ai/agents/api.ts
@@ -109,3 +109,13 @@ export function getPublishedKnowledgeList() {
     params: { publishedOnly: true },
   });
 }
+
+export function getMcpPage() {
+  return api.get<RequestResult<any>>('/api/v1/mcp/page', {
+    params: { pageNumber: 1, pageSize: 200, status: 1 },
+  });
+}
+
+export function getMcpTools(id: number | string) {
+  return api.post<RequestResult<any>>('/api/v1/mcp/getMcpTools', { id });
+}
diff --git a/easyflow-ui-admin/app/src/views/ai/agents/components/AgentInspectorPanel.vue b/easyflow-ui-admin/app/src/views/ai/agents/components/AgentInspectorPanel.vue
index 08bbc952..fc16da73 100644
--- a/easyflow-ui-admin/app/src/views/ai/agents/components/AgentInspectorPanel.vue
+++ b/easyflow-ui-admin/app/src/views/ai/agents/components/AgentInspectorPanel.vue
@@ -5,22 +5,27 @@ import type {
   AgentValidationIssue,
 } from '../types';
 
-import { computed, nextTick, ref, watch } from 'vue';
+import {
+  computed,
+  defineAsyncComponent,
+  nextTick,
+  onBeforeUnmount,
+  onMounted,
+  ref,
+  watch,
+} from 'vue';
 
 import { Close } from '@element-plus/icons-vue';
 import { ElButton, ElTabPane, ElTabs } from 'element-plus';
 
 import AgentBaseForm from './AgentBaseForm.vue';
-import AgentInteractionForm from './AgentInteractionForm.vue';
-import AgentKnowledgeForm from './AgentKnowledgeForm.vue';
-import AgentToolForm from './AgentToolForm.vue';
-import AgentTryoutPanel from './AgentTryoutPanel.vue';
 
 const props = defineProps<{
   categories: AgentOption[];
   issues: AgentValidationIssue[];
   knowledges: AgentOption[];
   mcps: AgentOption[];
+  mcpToolsLoading: Record<string, boolean>;
   models: AgentOption[];
   pluginTools: AgentOption[];
   state: AgentDraftState;
@@ -30,10 +35,24 @@ const props = defineProps<{
 const emit = defineEmits<{
   change: [];
   closeTryout: [];
+  loadMcpTools: [id: string];
   removeCapability: [];
   selectIssue: [nodeId: string];
 }>();
 
+const loadAgentInteractionForm = () => import('./AgentInteractionForm.vue');
+const loadAgentKnowledgeForm = () => import('./AgentKnowledgeForm.vue');
+const loadAgentToolForm = () => import('./AgentToolForm.vue');
+const loadAgentTryoutPanel = () => import('./AgentTryoutPanel.vue');
+const AgentInteractionForm = defineAsyncComponent(loadAgentInteractionForm);
+const AgentKnowledgeForm = defineAsyncComponent(loadAgentKnowledgeForm);
+const AgentToolForm = defineAsyncComponent(loadAgentToolForm);
+const AgentTryoutPanel = defineAsyncComponent(loadAgentTryoutPanel);
+
+interface AgentInteractionFormExpose {
+  focusField: (field: string) => Promise<void> | void;
+}
+
 const selectedKnowledge = computed(() => {
   if (!props.state.selectedNodeId.startsWith('knowledge:')) return;
   const localId = props.state.selectedNodeId.slice('knowledge:'.length);
@@ -41,7 +60,7 @@ const selectedKnowledge = computed(() => {
 });
 
 const activeBaseTab = ref<'basic' | 'interaction'>('basic');
-const interactionForm = ref<InstanceType<typeof AgentInteractionForm>>();
+const interactionForm = ref<AgentInteractionFormExpose>();
 const selectedModel = computed(() =>
   props.models.find((item) => item.value === String(props.state.agent.modelId)),
 );
@@ -56,7 +75,7 @@ function isInteractionIssue(issue?: AgentValidationIssue) {
 async function focusIssue(issue: AgentValidationIssue) {
   if (issue.nodeId !== 'agent-base') return;
   activeBaseTab.value = isInteractionIssue(issue) ? 'interaction' : 'basic';
-  if (isInteractionIssue(issue)) {
+  if (isInteractionIssue(issue) && issue.field) {
     await nextTick();
     await interactionForm.value?.focusField(issue.field);
   }
@@ -94,6 +113,49 @@ const selectedToolOptions = computed(() => {
   if (selectedToolKind.value === 'mcp') return props.mcps;
   return props.pluginTools;
 });
+
+watch(
+  () =>
+    selectedToolKind.value === 'mcp'
+      ? String(selectedTool.value?.targetId || '')
+      : '',
+  (mcpId) => {
+    if (mcpId) {
+      emit('loadMcpTools', mcpId);
+    }
+  },
+  { immediate: true },
+);
+
+let prefetchHandle: number | undefined;
+let prefetchTimer: number | undefined;
+
+onMounted(() => {
+  const prefetchHiddenPanels = () => {
+    void Promise.allSettled([
+      loadAgentInteractionForm(),
+      loadAgentKnowledgeForm(),
+      loadAgentToolForm(),
+      loadAgentTryoutPanel(),
+    ]);
+  };
+  if (typeof window.requestIdleCallback === 'function') {
+    prefetchHandle = window.requestIdleCallback(prefetchHiddenPanels, {
+      timeout: 3000,
+    });
+    return;
+  }
+  prefetchTimer = window.setTimeout(prefetchHiddenPanels, 1000);
+});
+
+onBeforeUnmount(() => {
+  if (prefetchHandle !== undefined) {
+    window.cancelIdleCallback(prefetchHandle);
+  }
+  if (prefetchTimer !== undefined) {
+    window.clearTimeout(prefetchTimer);
+  }
+});
 </script>
 
 <template>
@@ -162,6 +224,9 @@ const selectedToolOptions = computed(() => {
           v-else-if="selectedTool"
           :binding="selectedTool"
           :kind="selectedToolKind"
+          :mcp-tools-loading="
+            Boolean(mcpToolsLoading[String(selectedTool.targetId || '')])
+          "
           :options="selectedToolOptions"
           @change="emit('change')"
           @remove="emit('removeCapability')"
diff --git a/easyflow-ui-admin/app/src/views/ai/agents/components/AgentToolForm.vue b/easyflow-ui-admin/app/src/views/ai/agents/components/AgentToolForm.vue
index 4cad9358..85c54018 100644
--- a/easyflow-ui-admin/app/src/views/ai/agents/components/AgentToolForm.vue
+++ b/easyflow-ui-admin/app/src/views/ai/agents/components/AgentToolForm.vue
@@ -18,6 +18,7 @@ import {
 const props = defineProps<{
   binding: AgentToolBinding;
   kind: 'mcp' | 'plugin' | 'workflow';
+  mcpToolsLoading?: boolean;
   options: AgentOption[];
 }>();
 
@@ -129,7 +130,11 @@ function handleTargetChange(value: string) {
         />
       </ElSelect>
     </ElFormItem>
-    <div v-if="kind === 'mcp'" class="agent-form__mcp-tools">
+    <div
+      v-if="kind === 'mcp'"
+      v-loading="mcpToolsLoading"
+      class="agent-form__mcp-tools"
+    >
       <div class="agent-form__mcp-tools-header">
         <span>工具列表</span>
         <span>{{ selectedMcpToolCount }} 个</span>
diff --git a/easyflow-ui-admin/app/src/views/ai/agents/components/agent-studio/AgentStudioCanvas.vue b/easyflow-ui-admin/app/src/views/ai/agents/components/agent-studio/AgentStudioCanvas.vue
index 0a5f4b8c..ea496bf1 100644
--- a/easyflow-ui-admin/app/src/views/ai/agents/components/agent-studio/AgentStudioCanvas.vue
+++ b/easyflow-ui-admin/app/src/views/ai/agents/components/agent-studio/AgentStudioCanvas.vue
@@ -1,5 +1,5 @@
 <script setup lang="ts">
-import type {AgentDraftState, AgentOption} from '../../types';
+import type { AgentDraftState, AgentOption } from '../../types';
 import type {
   AgentStudioCanvasSize,
   AgentStudioConnectionView,
@@ -10,36 +10,46 @@ import type {
 
 import {
   computed,
-  createApp,
   h,
+  nextTick,
   onBeforeUnmount,
   onMounted,
-  reactive,
   ref,
+  render as renderVueVNode,
   shallowRef,
   watch,
 } from 'vue';
 
-import {usePreferences} from '@easyflow/preferences';
+import { usePreferences } from '@easyflow/preferences';
 
-import {Tinyflow} from '@tinyflow-ai/vue';
+import { Tinyflow } from '@tinyflow-ai/vue';
 
-import {useAgentStudioLayout} from '../../composables/agent-studio/useAgentStudioLayout';
-import {useAgentStudioModel} from '../../composables/agent-studio/useAgentStudioModel';
+import { useAgentStudioLayout } from '../../composables/agent-studio/useAgentStudioLayout';
+import { useAgentStudioModel } from '../../composables/agent-studio/useAgentStudioModel';
 import AgentStudioBaseNode from './AgentStudioBaseNode.vue';
 import AgentStudioCapabilityNode from './AgentStudioCapabilityNode.vue';
 import AgentStudioEdgeLayer from './AgentStudioEdgeLayer.vue';
 
 import '@tinyflow-ai/vue/dist/index.css';
 
-const props = defineProps<{
-  knowledgeOptions?: AgentOption[];
-  mcpOptions?: AgentOption[];
-  pluginOptions?: AgentOption[];
-  selectedNodeId: string;
-  state: AgentDraftState;
-  workflowOptions?: AgentOption[];
-}>();
+const props = withDefaults(
+  defineProps<{
+    active?: boolean;
+    knowledgeOptions?: AgentOption[];
+    mcpOptions?: AgentOption[];
+    pluginOptions?: AgentOption[];
+    selectedNodeId: string;
+    state: AgentDraftState;
+    workflowOptions?: AgentOption[];
+  }>(),
+  {
+    active: true,
+    knowledgeOptions: () => [],
+    mcpOptions: () => [],
+    pluginOptions: () => [],
+    workflowOptions: () => [],
+  },
+);
 
 const emit = defineEmits<{
   select: [nodeId: string];
@@ -61,25 +71,33 @@ const canvasModel = useAgentStudioModel(
     workflow: props.workflowOptions || [],
   }),
 );
-const liveNodes = ref<AgentStudioNodeView[]>([]);
-const liveViewport = ref<AgentStudioViewport>({ x: 250, y: 100, zoom: 1 });
-const flowData = computed(() => {
+const liveNodes = shallowRef<AgentStudioNodeView[]>([]);
+const liveViewport = shallowRef<AgentStudioViewport>({
+  x: 250,
+  y: 100,
+  zoom: 1,
+});
+function buildFlowData() {
   const liveNodeMap = new Map(liveNodes.value.map((node) => [node.id, node]));
   return {
-    edges: canvasModel.value.edges.map((edge) => ({ ...edge })),
+    edges: canvasModel.value.edges,
     nodes: canvasModel.value.nodes.map((node) => {
       const liveNode = liveNodeMap.get(node.id);
+      const position = liveNode?.position || node.position;
+      if (position === node.position) {
+        return node;
+      }
       return {
         ...node,
-        data: { ...node.data },
-        position: { ...(liveNode?.position || node.position) },
+        position,
       };
     }),
     viewport: layout.viewport ? { ...layout.viewport } : undefined,
   };
-});
-const lastCaptureSignature = ref('');
-const lastFlowDataSignature = ref('');
+}
+let lastCapturedEdges: unknown;
+let lastCapturedNodes: unknown;
+let lastCapturedViewport: unknown;
 
 const customNodes = computed(() => ({
   agentStudioBase: {
@@ -90,6 +108,7 @@ const customNodes = computed(() => ({
     onUpdate: (parent: HTMLElement, node: any) => {
       renderVueNode(parent, AgentStudioBaseNode, node.data);
     },
+    onDestroy: unmountVueNode,
   },
   agentStudioCapability: {
     presentation: 'plain',
@@ -99,6 +118,7 @@ const customNodes = computed(() => ({
     onUpdate: (parent: HTMLElement, node: any) => {
       renderVueNode(parent, AgentStudioCapabilityNode, node.data);
     },
+    onDestroy: unmountVueNode,
   },
 }));
 
@@ -116,7 +136,7 @@ const connections = computed<AgentStudioConnectionView[]>(() => {
       return {
         active: false,
         id: edge.id,
-        path: buildConnectionPath(source, target, liveViewport.value),
+        path: buildConnectionPath(source, target),
         sourceId: edge.source,
         targetId: edge.target,
       };
@@ -132,37 +152,28 @@ function renderVueNode(
   const current = (parent as any).__agentStudioNodeView as
     | undefined
     | {
-        app: ReturnType<typeof createApp>;
         component: any;
-        data: AgentStudioNodeData;
-        signature: string;
+        source: AgentStudioNodeData;
       };
-  const signature = JSON.stringify(data);
   if (current && current.component === component) {
-    if (current.signature === signature) {
+    if (current.source === data) {
       return;
     }
-    Object.assign(current.data, data);
-    current.signature = signature;
-    return;
+    current.source = data;
   }
 
-  current?.app.unmount();
-  parent.textContent = '';
-
-  const reactiveData = reactive({ ...data }) as AgentStudioNodeData;
-  const app = createApp({
-    render: () => h(component, { data: reactiveData }),
-  });
-  app.mount(parent);
+  renderVueVNode(h(component, { data }), parent);
   (parent as any).__agentStudioNodeView = {
-    app,
     component,
-    data: reactiveData,
-    signature,
+    source: data,
   };
 }
 
+function unmountVueNode(parent: HTMLElement) {
+  renderVueVNode(null, parent);
+  delete (parent as any).__agentStudioNodeView;
+}
+
 function getNodeSize(node: AgentStudioNodeView) {
   return {
     height: node.height || (node.data.kind === 'base' ? 104 : 78),
@@ -170,20 +181,9 @@ function getNodeSize(node: AgentStudioNodeView) {
   };
 }
 
-function toScreenPoint(
-  point: { x: number; y: number },
-  viewport: AgentStudioViewport,
-) {
-  return {
-    x: point.x * viewport.zoom + viewport.x,
-    y: point.y * viewport.zoom + viewport.y,
-  };
-}
-
 function buildConnectionPath(
   source: AgentStudioNodeView,
   target: AgentStudioNodeView,
-  viewport: AgentStudioViewport,
 ) {
   const sourceSize = getNodeSize(source);
   const targetSize = getNodeSize(target);
@@ -204,80 +204,119 @@ function buildConnectionPath(
     x: target.position.x + (sourceOnLeft ? targetSize.width : 0),
     y: targetCenter.y,
   };
-  const screenStart = toScreenPoint(start, viewport);
-  const screenEnd = toScreenPoint(end, viewport);
-  const midX = (screenStart.x + screenEnd.x) / 2;
+  const midX = (start.x + end.x) / 2;
   return [
-    `M ${screenStart.x} ${screenStart.y}`,
-    `L ${midX} ${screenStart.y}`,
-    `L ${midX} ${screenEnd.y}`,
-    `L ${screenEnd.x} ${screenEnd.y}`,
+    `M ${start.x} ${start.y}`,
+    `L ${midX} ${start.y}`,
+    `L ${midX} ${end.y}`,
+    `L ${end.x} ${end.y}`,
   ].join(' ');
 }
 
 function handleDataChange(data: any) {
-  const signature = buildFlowDataSignature(data);
-  if (signature === lastCaptureSignature.value) {
+  if (!props.active) {
     return;
   }
-  lastCaptureSignature.value = signature;
+  const edges = Array.isArray(data?.edges) ? data.edges : undefined;
+  const nodes = Array.isArray(data?.nodes)
+    ? (data.nodes as AgentStudioNodeView[])
+    : undefined;
+  const viewport = data?.viewport as AgentStudioViewport | undefined;
+  if (
+    edges === lastCapturedEdges &&
+    nodes === lastCapturedNodes &&
+    viewport === lastCapturedViewport
+  ) {
+    return;
+  }
+  lastCapturedEdges = edges;
+  lastCapturedNodes = nodes;
+  lastCapturedViewport = viewport;
 
-  if (Array.isArray(data?.nodes)) {
-    liveNodes.value = data.nodes as AgentStudioNodeView[];
+  if (nodes) {
+    liveNodes.value = nodes;
   }
-  if (data?.viewport) {
-    liveViewport.value = data.viewport as AgentStudioViewport;
+  if (viewport) {
+    liveViewport.value = viewport;
   }
-  capture({
-    nodes: data?.nodes as AgentStudioNodeView[] | undefined,
-    viewport: data?.viewport as AgentStudioViewport | undefined,
-  });
-  const selected = data?.nodes?.find((node: any) => node.selected);
+  const selected = nodes?.find((node: any) => node.selected);
   if (selected?.id && selected.id !== props.selectedNodeId) {
     emit('select', selected.id);
   }
 }
 
-function buildFlowDataSignature(data: any) {
-  const nodes = Array.isArray(data?.nodes)
-    ? data.nodes.map((node: any) => ({
-        data: node.data,
-        id: node.id,
-        position: node.position,
-        selected: node.selected,
-        type: node.type,
-      }))
-    : [];
-  const edges = Array.isArray(data?.edges)
-    ? data.edges.map((edge: any) => ({
-        id: edge.id,
-        source: edge.source,
-        target: edge.target,
-      }))
-    : [];
-  return JSON.stringify({
-    edges,
-    nodes,
-    viewport: data?.viewport,
+function handleDataCommit(data: any) {
+  if (!props.active) {
+    return;
+  }
+  capture({
+    nodes: Array.isArray(data?.nodes)
+      ? (data.nodes as AgentStudioNodeView[])
+      : undefined,
+    viewport: data?.viewport as AgentStudioViewport | undefined,
   });
 }
 
-const stableFlowData = shallowRef(flowData.value);
-let resizeObserver: ResizeObserver | undefined;
-
-function syncFlowData() {
-  const next = flowData.value;
-  const signature = buildFlowDataSignature(next);
-  if (signature === lastFlowDataSignature.value) {
-    return;
+function shallowEqual(left: object, right: object) {
+  if (left === right) {
+    return true;
   }
-  lastFlowDataSignature.value = signature;
-  stableFlowData.value = next;
+  const leftRecord = left as Record<string, unknown>;
+  const rightRecord = right as Record<string, unknown>;
+  const leftKeys = Object.keys(leftRecord);
+  if (leftKeys.length !== Object.keys(rightRecord).length) {
+    return false;
+  }
+  return leftKeys.every((key) => Object.is(leftRecord[key], rightRecord[key]));
 }
 
-syncFlowData();
+function canvasModelsEqual(
+  previous: typeof canvasModel.value,
+  next: typeof canvasModel.value,
+  comparePositions: boolean,
+) {
+  if (
+    previous.nodes.length !== next.nodes.length ||
+    previous.edges.length !== next.edges.length
+  ) {
+    return false;
+  }
+  const nodesEqual = previous.nodes.every((node, index) => {
+    const nextNode = next.nodes[index];
+    return (
+      node.id === nextNode?.id &&
+      node.type === nextNode.type &&
+      node.width === nextNode.width &&
+      node.height === nextNode.height &&
+      shallowEqual(node.data, nextNode.data) &&
+      (!comparePositions ||
+        (node.position.x === nextNode.position.x &&
+          node.position.y === nextNode.position.y))
+    );
+  });
+  if (!nodesEqual) {
+    return false;
+  }
+  return previous.edges.every((edge, index) => {
+    const nextEdge = next.edges[index];
+    return nextEdge ? shallowEqual(edge, nextEdge) : false;
+  });
+}
 
-watch(flowData, syncFlowData);
+const stableFlowData = shallowRef(buildFlowData());
+let lastCanvasModel = canvasModel.value;
+let resizeObserver: ResizeObserver | undefined;
+
+function syncFlowData(nextModel: typeof canvasModel.value) {
+  const comparePositions = liveNodes.value.length === 0;
+  if (canvasModelsEqual(lastCanvasModel, nextModel, comparePositions)) {
+    return;
+  }
+  lastCanvasModel = nextModel;
+  stableFlowData.value = buildFlowData();
+}
+
+watch(canvasModel, syncFlowData);
 
 function updateCanvasSize() {
   const rect = canvasRef.value?.getBoundingClientRect();
@@ -295,16 +334,41 @@ function updateCanvasSize() {
   canvasSize.value = next;
 }
 
-onMounted(() => {
+function stopCanvasObservation() {
+  resizeObserver?.disconnect();
+  resizeObserver = undefined;
+}
+
+function startCanvasObservation() {
+  stopCanvasObservation();
+  if (!props.active) {
+    return;
+  }
   updateCanvasSize();
   if (typeof ResizeObserver === 'undefined' || !canvasRef.value) return;
   resizeObserver = new ResizeObserver(updateCanvasSize);
   resizeObserver.observe(canvasRef.value);
+}
+
+onMounted(() => {
+  startCanvasObservation();
 });
 
 onBeforeUnmount(() => {
-  resizeObserver?.disconnect();
+  stopCanvasObservation();
 });
+
+watch(
+  () => props.active,
+  async (active) => {
+    if (!active) {
+      stopCanvasObservation();
+      return;
+    }
+    await nextTick();
+    startCanvasObservation();
+  },
+);
 </script>
 
 <template>
@@ -329,8 +393,9 @@ onBeforeUnmount(() => {
       :elements-selectable="true"
       :drop-enabled="false"
       :on-data-change="handleDataChange"
+      :on-data-commit="handleDataCommit"
     />
-    <AgentStudioEdgeLayer :connections="connections" />
+    <AgentStudioEdgeLayer :connections="connections" :viewport="liveViewport" />
   </div>
 </template>
 
diff --git a/easyflow-ui-admin/app/src/views/ai/agents/components/agent-studio/AgentStudioEdgeLayer.vue b/easyflow-ui-admin/app/src/views/ai/agents/components/agent-studio/AgentStudioEdgeLayer.vue
index ff517278..52147da6 100644
--- a/easyflow-ui-admin/app/src/views/ai/agents/components/agent-studio/AgentStudioEdgeLayer.vue
+++ b/easyflow-ui-admin/app/src/views/ai/agents/components/agent-studio/AgentStudioEdgeLayer.vue
@@ -1,22 +1,27 @@
 <script setup lang="ts">
-import type {AgentStudioConnectionView} from './types';
+import type { AgentStudioConnectionView, AgentStudioViewport } from './types';
 
 defineProps<{
   connections: AgentStudioConnectionView[];
+  viewport: AgentStudioViewport;
 }>();
 </script>
 
 <template>
   <svg class="agent-studio-edge-layer" aria-hidden="true">
-    <path
-      v-for="connection in connections"
-      :key="connection.id"
-      class="agent-studio-edge-layer__path"
-      :class="{ 'is-active': connection.active }"
-      :d="connection.path"
-      :data-source-id="connection.sourceId"
-      :data-target-id="connection.targetId"
-    />
+    <g
+      :transform="`translate(${viewport.x} ${viewport.y}) scale(${viewport.zoom})`"
+    >
+      <path
+        v-for="connection in connections"
+        :key="connection.id"
+        class="agent-studio-edge-layer__path"
+        :class="{ 'is-active': connection.active }"
+        :d="connection.path"
+        :data-source-id="connection.sourceId"
+        :data-target-id="connection.targetId"
+      />
+    </g>
   </svg>
 </template>
 
diff --git a/easyflow-ui-admin/app/src/views/ai/agents/composables/agent-studio/useAgentStudioLayout.ts b/easyflow-ui-admin/app/src/views/ai/agents/composables/agent-studio/useAgentStudioLayout.ts
index 336a4446..d02eb2ca 100644
--- a/easyflow-ui-admin/app/src/views/ai/agents/composables/agent-studio/useAgentStudioLayout.ts
+++ b/easyflow-ui-admin/app/src/views/ai/agents/composables/agent-studio/useAgentStudioLayout.ts
@@ -93,11 +93,12 @@ export function useAgentStudioLayout(state: AgentDraftState) {
   }) {
     let changed = false;
     if (Array.isArray(data.nodes)) {
+      let positionsChanged = false;
       const activeIds = new Set(data.nodes.map((node) => node.id));
       const nextPositions: AgentStudioLayoutSnapshot['nodePositions'] = {};
       for (const [key, position] of Object.entries(snapshot.nodePositions)) {
         if (activeIds.has(key)) nextPositions[key] = position;
-        else changed = true;
+        else positionsChanged = true;
       }
       data.nodes.forEach((node) => {
         if (isFinitePosition(node.position)) {
@@ -108,11 +109,14 @@ export function useAgentStudioLayout(state: AgentDraftState) {
             current.y !== node.position.y
           ) {
             nextPositions[node.id] = { ...node.position };
-            changed = true;
+            positionsChanged = true;
           }
         }
       });
-      snapshot.nodePositions = nextPositions;
+      if (positionsChanged) {
+        snapshot.nodePositions = nextPositions;
+        changed = true;
+      }
     }
     if (
       isFiniteViewport(data.viewport) &&
diff --git a/easyflow-ui-admin/app/src/views/ai/agents/composables/agent-studio/useAgentStudioModel.test.ts b/easyflow-ui-admin/app/src/views/ai/agents/composables/agent-studio/useAgentStudioModel.test.ts
index 9f0d13dc..4b0b19f5 100644
--- a/easyflow-ui-admin/app/src/views/ai/agents/composables/agent-studio/useAgentStudioModel.test.ts
+++ b/easyflow-ui-admin/app/src/views/ai/agents/composables/agent-studio/useAgentStudioModel.test.ts
@@ -100,4 +100,45 @@ describe('useAgentStudioModel', () => {
     expect(mcpNode?.data.title).toBe('context7 · 2 个工具');
     expect(mcpNode?.data.detail).toBe('context7 · 2 个工具');
   });
+
+  it('单次模型计算只读取一次工具选项集合', () => {
+    let optionReads = 0;
+    const model = useAgentStudioModel(
+      {
+        agent: {
+          name: '测试智能体',
+        },
+        dirty: false,
+        knowledgeBindings: [],
+        panelMode: 'capability',
+        selectedNodeId: 'tool:plugin-1',
+        toolBindings: [
+          {
+            localId: 'plugin-1',
+            targetId: '1001',
+            toolType: 'PLUGIN',
+          },
+          {
+            localId: 'workflow-1',
+            targetId: '2001',
+            toolType: 'WORKFLOW',
+          },
+        ],
+      },
+      () => 'tool:plugin-1',
+      undefined,
+      undefined,
+      undefined,
+      () => {
+        optionReads += 1;
+        return {
+          plugin: [{ label: '插件', value: '1001' }],
+          workflow: [{ label: '工作流', value: '2001' }],
+        };
+      },
+    );
+
+    expect(model.value.nodes).toHaveLength(3);
+    expect(optionReads).toBe(1);
+  });
 });
diff --git a/easyflow-ui-admin/app/src/views/ai/agents/composables/agent-studio/useAgentStudioModel.ts b/easyflow-ui-admin/app/src/views/ai/agents/composables/agent-studio/useAgentStudioModel.ts
index 539edb1d..99f8de9d 100644
--- a/easyflow-ui-admin/app/src/views/ai/agents/composables/agent-studio/useAgentStudioModel.ts
+++ b/easyflow-ui-admin/app/src/views/ai/agents/composables/agent-studio/useAgentStudioModel.ts
@@ -31,13 +31,36 @@ function firstText(...values: unknown[]) {
   return matched ? String(matched).trim() : '';
 }
 
+function createKnowledgeOptionLookup(options: AgentOption[]) {
+  const lookup = new Map<string, AgentOption>();
+  options.forEach((option) => {
+    const key = String(option.value);
+    if (!lookup.has(key)) {
+      lookup.set(key, option);
+    }
+  });
+  return lookup;
+}
+
+function createToolOptionLookup(options: AgentOption[]) {
+  const lookup = new Map<string, AgentOption>();
+  options.forEach((option) => {
+    const raw = option.raw || {};
+    [option.value, raw.id, raw.mcpId].forEach((value) => {
+      const key = String(value || '');
+      if (key && !lookup.has(key)) {
+        lookup.set(key, option);
+      }
+    });
+  });
+  return lookup;
+}
+
 function buildKnowledgeTitle(
   binding: AgentKnowledgeBinding,
-  options: AgentOption[],
+  optionLookup: Map<string, AgentOption>,
 ) {
-  const matchedOption = options.find(
-    (item) => String(item.value) === String(binding.knowledgeId),
-  );
+  const matchedOption = optionLookup.get(String(binding.knowledgeId));
   return firstText(
     binding.resourceSummary?.title,
     binding.resourceSummary?.name,
@@ -59,22 +82,18 @@ function buildKnowledgeTitle(
 
 function findMatchedToolOption(
   binding: AgentToolBinding,
-  options: AgentOption[],
+  optionLookup: Map<string, AgentOption>,
 ) {
   const targetId = String(binding.targetId || '');
   if (!targetId) return undefined;
-  return options.find((item) => {
-    const raw = item.raw || {};
-    return (
-      String(item.value) === targetId ||
-      String(raw.id || '') === targetId ||
-      String(raw.mcpId || '') === targetId
-    );
-  });
+  return optionLookup.get(targetId);
 }
 
-function buildToolTitle(binding: AgentToolBinding, options: AgentOption[] = []) {
-  const matchedOption = findMatchedToolOption(binding, options);
+function buildToolTitle(
+  binding: AgentToolBinding,
+  optionLookup: Map<string, AgentOption>,
+  matchedOption = findMatchedToolOption(binding, optionLookup),
+) {
   return firstText(
     binding.resourceSummary?.title,
     binding.resourceSummary?.name,
@@ -99,11 +118,11 @@ function buildToolTitle(binding: AgentToolBinding, options: AgentOption[] = [])
 function buildToolDetail(
   binding: AgentToolBinding,
   fallback: string,
-  options: AgentOption[] = [],
+  optionLookup: Map<string, AgentOption>,
 ) {
   if (String(binding.toolType || '').toUpperCase() === 'MCP') {
-    const matchedOption = findMatchedToolOption(binding, options);
-    const resourceName = buildToolTitle(binding, options);
+    const matchedOption = findMatchedToolOption(binding, optionLookup);
+    const resourceName = buildToolTitle(binding, optionLookup, matchedOption);
     const tools =
       binding.resourceSummary?.tools ||
       binding.resourceSnapshot?.tools ||
@@ -116,7 +135,7 @@ function buildToolDetail(
     return resourceName || fallback;
   }
   const toolName = firstText(binding.toolName);
-  const resourceName = buildToolTitle(binding, options);
+  const resourceName = buildToolTitle(binding, optionLookup);
   if (toolName && resourceName && toolName !== resourceName) {
     return `${resourceName} / ${toolName}`;
   }
@@ -214,6 +233,16 @@ export function useAgentStudioModel(
     const positionOf = (nodeId: string, fallback: { x: number; y: number }) =>
       layout?.nodePositions?.[nodeId] || fallback;
     const size = canvasSize?.();
+    const resolvedKnowledgeOptions = knowledgeOptions?.() || [];
+    const resolvedToolOptions = toolOptions?.() || {};
+    const knowledgeOptionLookup = createKnowledgeOptionLookup(
+      resolvedKnowledgeOptions,
+    );
+    const toolOptionLookups = {
+      mcp: createToolOptionLookup(resolvedToolOptions.mcp || []),
+      plugin: createToolOptionLookup(resolvedToolOptions.plugin || []),
+      workflow: createToolOptionLookup(resolvedToolOptions.workflow || []),
+    };
     const occupiedPositions: Array<{ x: number; y: number }> = Object.values(
       layout?.nodePositions || {},
     );
@@ -238,7 +267,7 @@ export function useAgentStudioModel(
 
     const knowledgeNodes = state.knowledgeBindings.map((binding, index) => {
       const nodeId = `knowledge:${binding.localId}`;
-      const title = buildKnowledgeTitle(binding, knowledgeOptions?.() || []);
+      const title = buildKnowledgeTitle(binding, knowledgeOptionLookup);
       const position = resolveCapabilityNodePosition({
         canvasSize: size,
         fallbackIndex: index,
@@ -270,10 +299,10 @@ export function useAgentStudioModel(
       const isWorkflow = toolType === 'WORKFLOW';
       const isMcp = toolType === 'MCP';
       const matchedOptions = isWorkflow
-        ? toolOptions?.().workflow || []
+        ? toolOptionLookups.workflow
         : isMcp
-          ? toolOptions?.().mcp || []
-          : toolOptions?.().plugin || [];
+          ? toolOptionLookups.mcp
+          : toolOptionLookups.plugin;
       const fallback = isWorkflow
         ? '待选择工作流'
         : isMcp
diff --git a/easyflow-ui-admin/app/src/views/ai/agents/mcpToolLoader.test.ts b/easyflow-ui-admin/app/src/views/ai/agents/mcpToolLoader.test.ts
new file mode 100644
index 00000000..3affcd57
--- /dev/null
+++ b/easyflow-ui-admin/app/src/views/ai/agents/mcpToolLoader.test.ts
@@ -0,0 +1,39 @@
+import { describe, expect, it, vi } from 'vitest';
+
+import { createMcpToolLoader } from './mcpToolLoader';
+
+describe('createMcpToolLoader', () => {
+  it('复用同一 MCP 的并发请求和已完成结果', async () => {
+    const request = vi.fn(async (id: string) => ({ id, tools: ['search'] }));
+    const load = createMcpToolLoader(request);
+
+    const [first, second] = await Promise.all([load('mcp-1'), load('mcp-1')]);
+    const third = await load('mcp-1');
+
+    expect(request).toHaveBeenCalledTimes(1);
+    expect(first).toEqual({ id: 'mcp-1', tools: ['search'] });
+    expect(second).toBe(first);
+    expect(third).toBe(first);
+  });
+
+  it('分别加载不同的 MCP', async () => {
+    const request = vi.fn(async (id: string) => ({ id }));
+    const load = createMcpToolLoader(request);
+
+    await Promise.all([load('mcp-1'), load('mcp-2')]);
+
+    expect(request).toHaveBeenCalledTimes(2);
+  });
+
+  it('请求失败后允许重新加载', async () => {
+    const request = vi
+      .fn<(id: string) => Promise<undefined | { id: string }>>()
+      .mockRejectedValueOnce(new Error('network error'))
+      .mockResolvedValueOnce({ id: 'mcp-1' });
+    const load = createMcpToolLoader(request);
+
+    await expect(load('mcp-1')).rejects.toThrow('network error');
+    await expect(load('mcp-1')).resolves.toEqual({ id: 'mcp-1' });
+    expect(request).toHaveBeenCalledTimes(2);
+  });
+});
diff --git a/easyflow-ui-admin/app/src/views/ai/agents/mcpToolLoader.ts b/easyflow-ui-admin/app/src/views/ai/agents/mcpToolLoader.ts
new file mode 100644
index 00000000..bc02d79a
--- /dev/null
+++ b/easyflow-ui-admin/app/src/views/ai/agents/mcpToolLoader.ts
@@ -0,0 +1,35 @@
+type McpToolRequester<T> = (id: string) => Promise<T | undefined>;
+
+/**
+ * 创建页面级 MCP 工具加载器，同一 MCP 在页面生命周期内只请求一次。
+ */
+export function createMcpToolLoader<T>(request: McpToolRequester<T>) {
+  const requests = new Map<string, Promise<T | undefined>>();
+
+  return function loadMcpTools(id: number | string) {
+    const key = String(id || '').trim();
+    if (!key) {
+      return Promise.resolve(undefined);
+    }
+
+    const cached = requests.get(key);
+    if (cached) {
+      return cached;
+    }
+
+    const pending = request(key).then(
+      (result) => {
+        if (result === undefined) {
+          requests.delete(key);
+        }
+        return result;
+      },
+      (error) => {
+        requests.delete(key);
+        throw error;
+      },
+    );
+    requests.set(key, pending);
+    return pending;
+  };
+}
diff --git a/easyflow-ui-admin/app/src/views/ai/workflow/WorkflowDesign.vue b/easyflow-ui-admin/app/src/views/ai/workflow/WorkflowDesign.vue
index e29f75d4..f0466337 100644
--- a/easyflow-ui-admin/app/src/views/ai/workflow/WorkflowDesign.vue
+++ b/easyflow-ui-admin/app/src/views/ai/workflow/WorkflowDesign.vue
@@ -1,11 +1,13 @@
 <script setup lang="ts">
 import {
   computed,
+  onActivated,
   onBeforeUnmount,
   onDeactivated,
   onMounted,
   onUnmounted,
   ref,
+  shallowRef,
 } from 'vue';
 import {useRoute} from 'vue-router';
 
@@ -52,6 +54,8 @@ import {
 
 import '@tinyflow-ai/vue/dist/index.css';
 
+const WORKFLOW_VISIBLE_RENDER_NODE_THRESHOLD = 40;
+
 const props = withDefaults(
   defineProps<{
     shareMode?: boolean;
@@ -67,6 +71,9 @@ onMounted(async () => {
   document.addEventListener('keydown', handleKeydown);
   await initializeWorkflow();
 });
+onActivated(() => {
+  document.addEventListener('keydown', handleKeydown);
+});
 onBeforeUnmount(() => {
   captureCurrentWorkflowDraft();
 });
@@ -77,6 +84,7 @@ onUnmounted(() => {
   }
 });
 onDeactivated(() => {
+  document.removeEventListener('keydown', handleKeydown);
   captureCurrentWorkflowDraft();
 });
 // variables
@@ -85,7 +93,12 @@ const workflowId = ref(route.query.id);
 const workflowInfo = ref<any>({});
 const initializationError = ref(false);
 const runParams = ref<any>(null);
-const tinyFlowData = ref<any>(null);
+const tinyFlowData = shallowRef<any>(null);
+const onlyRenderVisibleWorkflowElements = computed(
+  () =>
+    (tinyFlowData.value?.nodes?.length || 0) >=
+    WORKFLOW_VISIBLE_RENDER_NODE_THRESHOLD,
+);
 const llmList = ref<any>([]);
 const knowledgeList = ref<any>([]);
 const codeEngineList = ref<any[]>([
@@ -476,7 +489,8 @@ function persistPendingWorkflowDraft() {
     draftWriteTimer = undefined;
     return;
   }
-  const content = pendingDraftContent;
+  const content = normalizeWorkflowStartNodes(pendingDraftContent);
+  lastObservedWorkflowContent = content;
   pendingDraftContent = null;
   draftWriteTimer = undefined;
   const persisted = writeWorkflowDraft({
@@ -491,8 +505,8 @@ function persistPendingWorkflowDraft() {
 }
 
 function scheduleWorkflowDraft(content: any) {
-  lastObservedWorkflowContent = normalizeWorkflowStartNodes(content);
-  pendingDraftContent = lastObservedWorkflowContent;
+  lastObservedWorkflowContent = content;
+  pendingDraftContent = content;
   if (draftWriteTimer) {
     clearTimeout(draftWriteTimer);
   }
@@ -942,11 +956,13 @@ function onAsyncExecute(info: any) {
       ref="tinyflowRef"
       v-else-if="showTinyFlow"
       class="tiny-flow-container"
-      :data="JSON.parse(JSON.stringify(tinyFlowData))"
+      :data="tinyFlowData"
+      :edge-animated="false"
+      :only-render-visible-elements="onlyRenderVisibleWorkflowElements"
       :theme="isDark ? 'dark' : 'light'"
       :provider="provider"
       :custom-nodes="customNode"
-      :on-data-change="scheduleWorkflowDraft"
+      :on-data-commit="scheduleWorkflowDraft"
       :on-node-execute="runIndependently"
       :on-run-test="runWorkflow"
     />
diff --git a/easyflow-ui-admin/packages/tinyflow-ui/src/Tinyflow.ts b/easyflow-ui-admin/packages/tinyflow-ui/src/Tinyflow.ts
index d796343c..5c63aeba 100644
--- a/easyflow-ui-admin/packages/tinyflow-ui/src/Tinyflow.ts
+++ b/easyflow-ui-admin/packages/tinyflow-ui/src/Tinyflow.ts
@@ -1,6 +1,6 @@
 import type {useSvelteFlow} from '@xyflow/svelte';
 import {componentName} from './consts';
-import {store} from './store/stores.svelte';
+import type {TinyflowStore} from './store/stores.svelte';
 import type {TinyflowData, TinyflowOptions, TinyflowTheme} from './types';
 import {installTinyflowBrowserCompat} from './utils/compat';
 import {createTinyflowNodeNormalizer} from './utils/nodeInteraction';
@@ -13,9 +13,13 @@ export class Tinyflow {
   private options!: TinyflowOptions;
   private rootEl!: Element;
   private svelteFlowInstance!: FlowInstance;
+  private store!: TinyflowStore;
   private tinyflowEl!: HTMLElement & {
     options: TinyflowOptions;
-    onInit: (svelteFlowInstance: FlowInstance) => void;
+    onInit: (
+      svelteFlowInstance: FlowInstance,
+      store: TinyflowStore,
+    ) => void;
   };
 
   constructor(options: TinyflowOptions) {
@@ -72,7 +76,10 @@ export class Tinyflow {
   private _createTinyflowElement() {
     const tinyflowEl = document.createElement(componentName) as HTMLElement & {
       options: TinyflowOptions;
-      onInit: (svelteFlowInstance: FlowInstance) => void;
+      onInit: (
+        svelteFlowInstance: FlowInstance,
+        store: TinyflowStore,
+      ) => void;
     };
     tinyflowEl.style.display = 'block';
     tinyflowEl.style.width = '100%';
@@ -80,8 +87,12 @@ export class Tinyflow {
     this._applyThemeClass(tinyflowEl, this.options.theme);
 
     tinyflowEl.options = this.options;
-    tinyflowEl.onInit = (svelteFlowInstance: FlowInstance) => {
+    tinyflowEl.onInit = (
+      svelteFlowInstance: FlowInstance,
+      store: TinyflowStore,
+    ) => {
       this.svelteFlowInstance = svelteFlowInstance;
+      this.store = store;
     };
     return tinyflowEl;
   }
@@ -104,29 +115,29 @@ export class Tinyflow {
       return false;
     }
 
-    const currentViewport = flow.getViewport();
-    const currentNodes = flow.getNodes();
     const normalizeNode = createTinyflowNodeNormalizer(this.options);
-    const currentNodePositions = new Map(
-      currentNodes.map((node) => [node.id, node.position]),
-    );
-    const nextNodes =
-      options?.preserveViewport === true
-        ? (data.nodes || currentNodes).map((node) => {
-            const currentPosition = currentNodePositions.get(node.id);
-            const nextNode = currentPosition
-              ? { ...node, position: { ...currentPosition } }
-              : node;
-            return normalizeNode(nextNode);
-          })
-        : (data.nodes || currentNodes).map((node) => normalizeNode(node));
-    store.setNodes(nextNodes);
-    store.setEdges(data.edges || flow.getEdges());
+    if (data.nodes) {
+      const currentNodePositions =
+        options?.preserveViewport === true
+          ? new Map(
+              flow.getNodes().map((node) => [node.id, node.position] as const),
+            )
+          : null;
+      const nextNodes = data.nodes.map((node) => {
+        const currentPosition = currentNodePositions?.get(node.id);
+        const nextNode = currentPosition
+          ? { ...node, position: { ...currentPosition } }
+          : node;
+        return normalizeNode(nextNode);
+      });
+      this.store.setNodes(nextNodes);
+    }
+    if (data.edges) {
+      this.store.setEdges(data.edges);
+    }
 
     if (data.viewport && options?.preserveViewport !== true) {
       flow.setViewport(data.viewport, { duration: 0 });
-    } else {
-      flow.setViewport(currentViewport, { duration: 0 });
     }
     return true;
   }
diff --git a/easyflow-ui-admin/packages/tinyflow-ui/src/components/TinyflowComponent.svelte b/easyflow-ui-admin/packages/tinyflow-ui/src/components/TinyflowComponent.svelte
index 885c6959..f637ae49 100644
--- a/easyflow-ui-admin/packages/tinyflow-ui/src/components/TinyflowComponent.svelte
+++ b/easyflow-ui-admin/packages/tinyflow-ui/src/components/TinyflowComponent.svelte
@@ -10,15 +10,22 @@
 <script lang="ts">
   import {SvelteFlowProvider, type useSvelteFlow} from '@xyflow/svelte';
   import TinyflowCore from './TinyflowCore.svelte';
-  import {store} from '#store/stores.svelte';
+  import {
+    createTinyflowStoreContext,
+    type TinyflowStore,
+  } from '#store/stores.svelte';
   import type {TinyflowData, TinyflowOptions} from '#types';
   import {setContext} from 'svelte';
   import {createTinyflowNodeNormalizer} from '../utils/nodeInteraction';
 
   const props = $props<{
         options: TinyflowOptions,
-        onInit: (svelteFlow: ReturnType<typeof useSvelteFlow>) => void,
+        onInit: (
+          svelteFlow: ReturnType<typeof useSvelteFlow>,
+          store: TinyflowStore,
+        ) => void,
     }>();
+    const store = createTinyflowStoreContext();
 
     const parseData = (source: TinyflowOptions['data']) => {
         let nextData = source;
@@ -61,5 +68,8 @@
 
 
 <SvelteFlowProvider>
-    <TinyflowCore onInit={props.onInit} />
+    <TinyflowCore
+      onInit={(svelteFlow: ReturnType<typeof useSvelteFlow>) =>
+        props.onInit(svelteFlow, store)}
+    />
 </SvelteFlowProvider>
diff --git a/easyflow-ui-admin/packages/tinyflow-ui/src/components/TinyflowCore.svelte b/easyflow-ui-admin/packages/tinyflow-ui/src/components/TinyflowCore.svelte
index c8730d3c..c8f49a22 100644
--- a/easyflow-ui-admin/packages/tinyflow-ui/src/components/TinyflowCore.svelte
+++ b/easyflow-ui-admin/packages/tinyflow-ui/src/components/TinyflowCore.svelte
@@ -9,11 +9,12 @@
     type NodeTypes,
     Panel,
     SvelteFlow,
-    useSvelteFlow
+    useSvelteFlow,
+    useUpdateNodeInternals
   } from '@xyflow/svelte';
   import '@xyflow/svelte/dist/style.css';
   import '../styles/index.ts';
-  import {store} from '#store/stores.svelte';
+  import {useTinyflowStore} from '#store/stores.svelte';
   import {nodeTypes} from './nodes';
   import Toolbar from './Toolbar.svelte';
   import NodePicker from './core/NodePicker.svelte';
@@ -34,7 +35,7 @@
   import {useGetNodesFromSource} from '#components/utils/useGetNodesFromSource.svelte';
   import {useGetNodeRelativePosition} from '#components/utils/useGetNodeRelativePosition.svelte';
   import {useCopyPasteHandler} from '#components/utils/useCopyPasteHandler.svelte';
-  import {onDestroy, onMount} from 'svelte';
+  import {onDestroy, onMount, setContext} from 'svelte';
   import {isInEditableElement} from '#components/utils/isInEditableElement';
   import {getAvailableNodes, type NodePaletteItem} from './utils/nodePalette';
   import {
@@ -42,9 +43,69 @@
     ensureStartNodeParameters,
     START_NODE_TYPE,
   } from '../utils/workflowNodeFields';
+  import type {TinyflowData, TinyflowDataCommitReason} from '../types';
+  import {
+    TINYFLOW_NODE_SIZE_OBSERVER,
+    type TinyflowNodeSizeObserver,
+  } from './utils/nodeSizeObserver';
 
   const { onInit }: { onInit: any; [key: string]: any } = $props();
+    const store = useTinyflowStore();
     const svelteFlow = useSvelteFlow();
+    const updateNodeInternals = useUpdateNodeInternals();
+    const nodeSizeIds = new WeakMap<Element, string>();
+    const pendingNodeSizeIds = new Set<string>();
+    let nodeSizeObserver: ResizeObserver | null = null;
+    let nodeSizeFrame = 0;
+
+    function flushNodeSizeUpdates() {
+        nodeSizeFrame = 0;
+        if (!flowRootEl?.isConnected || pendingNodeSizeIds.size === 0) {
+            pendingNodeSizeIds.clear();
+            return;
+        }
+        const nodeIds = Array.from(pendingNodeSizeIds);
+        pendingNodeSizeIds.clear();
+        updateNodeInternals(nodeIds);
+    }
+
+    function scheduleNodeSizeUpdate(nodeId: string) {
+        if (!nodeId) {
+            return;
+        }
+        pendingNodeSizeIds.add(nodeId);
+        if (!nodeSizeFrame) {
+            nodeSizeFrame = requestAnimationFrame(flushNodeSizeUpdates);
+        }
+    }
+
+    function ensureNodeSizeObserver() {
+        if (nodeSizeObserver || typeof ResizeObserver === 'undefined') {
+            return nodeSizeObserver;
+        }
+        nodeSizeObserver = new ResizeObserver((entries) => {
+            entries.forEach((entry) => {
+                const nodeId = nodeSizeIds.get(entry.target);
+                if (nodeId && entry.target.isConnected) {
+                    scheduleNodeSizeUpdate(nodeId);
+                }
+            });
+        });
+        return nodeSizeObserver;
+    }
+
+    const sharedNodeSizeObserver: TinyflowNodeSizeObserver = {
+        observe(nodeId, element) {
+            nodeSizeIds.set(element, nodeId);
+            scheduleNodeSizeUpdate(nodeId);
+            ensureNodeSizeObserver()?.observe(element);
+        },
+        unobserve(element) {
+            nodeSizeObserver?.unobserve(element);
+            nodeSizeIds.delete(element);
+        }
+    };
+    setContext(TINYFLOW_NODE_SIZE_OBSERVER, sharedNodeSizeObserver);
 
     let showEdgePanel = $state(false);
     let currentEdge = $state<Edge | null>(null);
@@ -71,6 +132,7 @@
     const nodesDraggable = options.nodesDraggable ?? !readonly;
     const nodesConnectable = options.nodesConnectable ?? !readonly;
     const elementsSelectable = options.elementsSelectable ?? !readonly;
+    const onlyRenderVisibleElements = options.onlyRenderVisibleElements === true;
     const dropEnabled = options.dropEnabled ?? !readonly;
     const connectionEnabled = nodesConnectable && !readonly;
     const availableNodes = getAvailableNodes(options);
@@ -327,8 +389,11 @@
     $effect(() => {
         const vp = store.getViewport();
         if (vp) {
-            currentZoomPercent = Math.round(vp.zoom * 100);
-            zoomSelectValue = String(currentZoomPercent);
+            const nextZoomPercent = Math.round(vp.zoom * 100);
+            if (currentZoomPercent !== nextZoomPercent) {
+                currentZoomPercent = nextZoomPercent;
+                zoomSelectValue = String(nextZoomPercent);
+            }
         }
     });
 
@@ -680,6 +745,9 @@
     const { copyHandler, pasteHandler } = useCopyPasteHandler();
 
     const handleKeyDown = (e: KeyboardEvent) => {
+        if (!flowRootEl?.isConnected) {
+            return;
+        }
         if (nodePickerVisible && e.key === 'Escape') {
             e.preventDefault();
             closeNodePicker();
@@ -709,6 +777,9 @@
     };
 
     const handleGlobalPaste = async (event: ClipboardEvent) => {
+        if (!flowRootEl?.isConnected) {
+            return;
+        }
         // 只在“非输入态”下处理流程图粘贴
         if (isInEditableElement()) {
             return;
@@ -718,7 +789,7 @@
     };
 
     function handleGlobalPointerDown(event: PointerEvent) {
-        if (readonly) {
+        if (readonly || !flowRootEl?.isConnected) {
             return;
         }
         if (!nodePickerVisible || !inlineNodePickerEl) {
@@ -764,15 +835,155 @@
         }
     }
 
+    const resolvedNodeTypes = {
+        ...nodeTypes,
+        ...customNodeTypes
+    } as NodeTypes;
+    const defaultEdgeOptions = {
+        type: 'flow',
+        markerEnd: {
+            type: MarkerType.ArrowClosed,
+            width: 20,
+            height: 20
+        }
+    };
+
+    function handleEdgeClick(event: { edge: Edge }) {
+        if (readonly || hideEdgePanel) {
+            return;
+        }
+        showEdgePanel = true;
+        currentEdge = event.edge;
+    }
+
+    function handleCanvasClick(event: MouseEvent) {
+        if (readonly || hideEdgePanel) {
+            return;
+        }
+        const element = event.target as HTMLElement;
+        if (element.classList.contains('svelte-flow__edge-interaction')
+            || element.classList.contains('panel-content')
+            || element.closest('.panel-content')) {
+            return;
+        }
+        showEdgePanel = false;
+        currentEdge = null;
+    }
+
     const onDataChange = options.onDataChange;
-    $effect(() => {
-        onDataChange?.({
+    const onDataCommit = options.onDataCommit;
+    let dataChangeFrame = 0;
+    let pendingDataChange: TinyflowData | null = null;
+    let dataCommitFrame = 0;
+    let pendingDataCommit: TinyflowData | null = null;
+    let pendingDataCommitReason: TinyflowDataCommitReason = 'change';
+    let nodeDragging = false;
+    let viewportMoving = false;
+
+    function currentData(): TinyflowData {
+        return {
             nodes: store.getNodes(),
             edges: store.getEdges(),
             viewport: store.getViewport()
-        });
+        };
+    }
+
+    function interactionActive() {
+        return nodeDragging || viewportMoving;
+    }
+
+    function flushDataChange() {
+        dataChangeFrame = 0;
+        const data = pendingDataChange;
+        pendingDataChange = null;
+        if (data) {
+            onDataChange?.(data);
+        }
+    }
+
+    function scheduleDataChange(data: TinyflowData) {
+        pendingDataChange = data;
+        if (!dataChangeFrame) {
+            dataChangeFrame = requestAnimationFrame(flushDataChange);
+        }
+    }
+
+    function flushDataCommit() {
+        dataCommitFrame = 0;
+        if (interactionActive()) {
+            return;
+        }
+        const data = pendingDataCommit;
+        const reason = pendingDataCommitReason;
+        pendingDataCommit = null;
+        pendingDataCommitReason = 'change';
+        if (data) {
+            onDataCommit?.(data, reason);
+        }
+    }
+
+    function scheduleDataCommit(
+        data: TinyflowData,
+        reason: TinyflowDataCommitReason = 'change'
+    ) {
+        pendingDataCommit = data;
+        if (reason !== 'change' || pendingDataCommitReason === 'change') {
+            pendingDataCommitReason = reason;
+        }
+        if (!interactionActive() && !dataCommitFrame) {
+            dataCommitFrame = requestAnimationFrame(flushDataCommit);
+        }
+    }
+
+    function handleNodeDragStart() {
+        nodeDragging = true;
+    }
+
+    function handleNodeDragStop() {
+        nodeDragging = false;
+        scheduleDataCommit(currentData(), 'node-drag-stop');
+    }
+
+    function handleViewportMoveStart() {
+        viewportMoving = true;
+    }
+
+    function handleViewportMoveEnd() {
+        viewportMoving = false;
+        scheduleDataCommit(currentData(), 'viewport-move-end');
+    }
+
+    $effect(() => {
+        const data = currentData();
+        if (onDataChange) {
+            scheduleDataChange(data);
+        }
+        if (onDataCommit) {
+            scheduleDataCommit(data);
+        }
     });
 
+    onDestroy(() => {
+        if (dataChangeFrame) {
+            cancelAnimationFrame(dataChangeFrame);
+            dataChangeFrame = 0;
+        }
+        if (dataCommitFrame) {
+            cancelAnimationFrame(dataCommitFrame);
+            dataCommitFrame = 0;
+        }
+        flushDataChange();
+        nodeDragging = false;
+        viewportMoving = false;
+        flushDataCommit();
+        if (nodeSizeFrame) {
+            cancelAnimationFrame(nodeSizeFrame);
+            nodeSizeFrame = 0;
+        }
+        pendingNodeSizeIds.clear();
+        nodeSizeObserver?.disconnect();
+        nodeSizeObserver = null;
+    });
 
 </script>
 
@@ -782,7 +993,7 @@
     style="position: relative; height: 100%; width: 100%;overflow: hidden"
     bind:this={flowRootEl}
 >
-    <SvelteFlow nodeTypes={{ ...nodeTypes, ...customNodeTypes}}
+    <SvelteFlow nodeTypes={resolvedNodeTypes}
                 edgeTypes={customEdgeTypes}
                 bind:nodes={store.getNodes, store.setNodes}
                 bind:edges={store.getEdges, store.setEdges}
@@ -790,47 +1001,27 @@
                 nodesDraggable={nodesDraggable && !canvasLocked}
                 nodesConnectable={nodesConnectable && !canvasLocked}
                 elementsSelectable={elementsSelectable && !canvasLocked}
+                {onlyRenderVisibleElements}
                 panOnDrag={readonly ? true : !canvasLocked}
                 zoomOnScroll={readonly ? true : !canvasLocked}
                 zoomOnDoubleClick={readonly ? true : !canvasLocked}
                 ondrop={dropEnabled ? onDrop : undefined}
                 ondragover={dropEnabled ? onDragOver : undefined}
+                onnodedragstart={onDataCommit ? handleNodeDragStart : undefined}
+                onnodedragstop={onDataCommit ? handleNodeDragStop : undefined}
+                onmovestart={onDataCommit ? handleViewportMoveStart : undefined}
+                onmoveend={onDataCommit ? handleViewportMoveEnd : undefined}
                 isValidConnection={isValidConnection}
                 onconnectend={connectionEnabled ? onconnectend : undefined}
                 onconnectstart={connectionEnabled ? onconnectstart : undefined}
                 onconnect={connectionEnabled ? onconnect : undefined}
                 connectionRadius={50}
                 connectionLineComponent={FlowConnectionLine}
-                onedgeclick={(e) => {
-                    if (readonly || hideEdgePanel) {
-                        return;
-                    }
-                    showEdgePanel = true;
-                    currentEdge = e.edge;
-                }}
+                onedgeclick={handleEdgeClick}
                 onbeforeconnect={(edge: any) => normalizeEdgeBeforeConnect(edge)}
                 ondelete={readonly ? undefined : onDelete}
-                onclick={(e) => {
-                    if (readonly || hideEdgePanel) {
-                        return;
-                    }
-                    const el = e.target as HTMLElement;
-                    if (el.classList.contains("svelte-flow__edge-interaction")
-                        || el.classList.contains('panel-content')
-                        || el.closest('.panel-content')){
-                     return
-                    }
-                     showEdgePanel = false;
-                     currentEdge = null;
-                }}
-                defaultEdgeOptions={{
-                    type: 'flow',
-                    markerEnd: {
-                        type: MarkerType.ArrowClosed,
-                        width: 20,
-                        height: 20
-                    }
-                }}
+                onclick={handleCanvasClick}
+                defaultEdgeOptions={defaultEdgeOptions}
     >
         <Background />
         {#if !hideMiniMap}
diff --git a/easyflow-ui-admin/packages/tinyflow-ui/src/components/core/DefinedParameterItem.svelte b/easyflow-ui-admin/packages/tinyflow-ui/src/components/core/DefinedParameterItem.svelte
index 1fd9d42b..64ff55cc 100644
--- a/easyflow-ui-admin/packages/tinyflow-ui/src/components/core/DefinedParameterItem.svelte
+++ b/easyflow-ui-admin/packages/tinyflow-ui/src/components/core/DefinedParameterItem.svelte
@@ -4,7 +4,7 @@
   import {useNodesData, useSvelteFlow} from '@xyflow/svelte';
   import {contentTypes, startFormTypes} from '#consts';
   import type {Parameter} from '#types';
-  import {store} from '#store/stores.svelte';
+  import {useTinyflowStore} from '#store/stores.svelte';
   import {getCurrentNodeId} from '#components/utils/NodeUtils';
   import {
     renameStartFieldReferencesInNodes,
@@ -18,6 +18,7 @@
         parameter: Parameter,
         index: number
     } = $props();
+    const store = useTinyflowStore();
 
 
     let currentNodeId = getCurrentNodeId();
diff --git a/easyflow-ui-admin/packages/tinyflow-ui/src/components/core/NodeWrapper.svelte b/easyflow-ui-admin/packages/tinyflow-ui/src/components/core/NodeWrapper.svelte
index 578a551c..45da85a2 100644
--- a/easyflow-ui-admin/packages/tinyflow-ui/src/components/core/NodeWrapper.svelte
+++ b/easyflow-ui-admin/packages/tinyflow-ui/src/components/core/NodeWrapper.svelte
@@ -14,6 +14,7 @@
   import {getOptions} from '../utils/NodeUtils';
   import {getCurrentNodeId} from '#components/utils/NodeUtils';
   import type {TinyflowNodeData} from '#types';
+  import {useTinyflowNodeSizeObserver} from '../utils/nodeSizeObserver';
 
   const {
         data,
@@ -82,36 +83,23 @@
     };
     let currentNodeId = getCurrentNodeId();
     let wrapperElement: HTMLDivElement | null = null;
-    let resizeObserver: ResizeObserver | null = null;
-    let resizeFrame = 0;
-
-    const scheduleUpdateNodeInternals = () => {
-        if (!id) {
-            return;
-        }
-        if (resizeFrame) {
-            cancelAnimationFrame(resizeFrame);
-        }
-        resizeFrame = requestAnimationFrame(() => {
-            updateNodeInternals(id);
-        });
-    };
+    const nodeSizeObserver = useTinyflowNodeSizeObserver();
 
     onMount(() => {
-        scheduleUpdateNodeInternals();
-        if (typeof ResizeObserver !== 'undefined' && wrapperElement) {
-            resizeObserver = new ResizeObserver(() => {
-                scheduleUpdateNodeInternals();
-            });
-            resizeObserver.observe(wrapperElement);
+        if (!wrapperElement) {
+            return;
+        }
+        if (nodeSizeObserver) {
+            nodeSizeObserver.observe(id, wrapperElement);
+        } else {
+            updateNodeInternals(id);
         }
     });
 
     onDestroy(() => {
-        if (resizeFrame) {
-            cancelAnimationFrame(resizeFrame);
+        if (wrapperElement) {
+            nodeSizeObserver?.unobserve(wrapperElement);
         }
-        resizeObserver?.disconnect();
     });
 
 </script>
diff --git a/easyflow-ui-admin/packages/tinyflow-ui/src/components/nodes/ConditionNode.svelte b/easyflow-ui-admin/packages/tinyflow-ui/src/components/nodes/ConditionNode.svelte
index 030f8487..ef60a43b 100644
--- a/easyflow-ui-admin/packages/tinyflow-ui/src/components/nodes/ConditionNode.svelte
+++ b/easyflow-ui-admin/packages/tinyflow-ui/src/components/nodes/ConditionNode.svelte
@@ -16,10 +16,11 @@
   import {genShortId} from '../utils/IdGen';
   import {deepEqual} from '../utils/deepEqual';
   import {useRefOptions} from '#components/utils/useRefOptions.svelte';
-  import {store} from '#store/stores.svelte';
+  import {useTinyflowStore} from '#store/stores.svelte';
   import type {Parameter, SelectItem} from '#types';
 
   const SHOW_EXPRESSION_ENTRY = false;
+  const store = useTinyflowStore();
 
   type ConditionOperator =
     | 'eq'
diff --git a/easyflow-ui-admin/packages/tinyflow-ui/src/components/nodes/CustomNode.svelte b/easyflow-ui-admin/packages/tinyflow-ui/src/components/nodes/CustomNode.svelte
index 2100d8f5..98ec9b3b 100644
--- a/easyflow-ui-admin/packages/tinyflow-ui/src/components/nodes/CustomNode.svelte
+++ b/easyflow-ui-admin/packages/tinyflow-ui/src/components/nodes/CustomNode.svelte
@@ -11,7 +11,7 @@
   import OutputDefList from '../core/OutputDefList.svelte';
   import ParamTokenEditor from '../core/ParamTokenEditor.svelte';
   import type {TinyflowNodeData} from '#types';
-  import {onMount} from 'svelte';
+  import {onDestroy, onMount} from 'svelte';
 
   const props = $props<{
         data: TinyflowNodeData,
@@ -73,6 +73,10 @@
         customNode.render?.(externalElement, buildNode(), flowInstance);
     });
 
+    onDestroy(() => {
+        customNode.onDestroy?.(externalElement);
+    });
+
     let container = $state<HTMLElement | null>(null);
     $effect(() => {
         // 注意：由于 $effect 的 state 自动追踪问题，需要 data.expand 方在 if 里的最前面
diff --git a/easyflow-ui-admin/packages/tinyflow-ui/src/components/utils/nodeSizeObserver.ts b/easyflow-ui-admin/packages/tinyflow-ui/src/components/utils/nodeSizeObserver.ts
new file mode 100644
index 00000000..8ed5bd58
--- /dev/null
+++ b/easyflow-ui-admin/packages/tinyflow-ui/src/components/utils/nodeSizeObserver.ts
@@ -0,0 +1,16 @@
+import { getContext } from 'svelte';
+
+export const TINYFLOW_NODE_SIZE_OBSERVER = Symbol(
+  'tinyflow_node_size_observer',
+);
+
+export type TinyflowNodeSizeObserver = {
+  observe: (nodeId: string, element: Element) => void;
+  unobserve: (element: Element) => void;
+};
+
+export function useTinyflowNodeSizeObserver() {
+  return getContext<TinyflowNodeSizeObserver | undefined>(
+    TINYFLOW_NODE_SIZE_OBSERVER,
+  );
+}
diff --git a/easyflow-ui-admin/packages/tinyflow-ui/src/components/utils/useCopyNode.svelte.ts b/easyflow-ui-admin/packages/tinyflow-ui/src/components/utils/useCopyNode.svelte.ts
index b8f56d07..feaac99d 100644
--- a/easyflow-ui-admin/packages/tinyflow-ui/src/components/utils/useCopyNode.svelte.ts
+++ b/easyflow-ui-admin/packages/tinyflow-ui/src/components/utils/useCopyNode.svelte.ts
@@ -1,7 +1,8 @@
 import { genShortId } from './IdGen';
-import { store } from '#store/stores.svelte';
+import { useTinyflowStore } from '#store/stores.svelte';
 
 export const useCopyNode = () => {
+  const store = useTinyflowStore();
   const copyNode = (id: string) => {
     const node = store.getNode(id);
     if (node) {
diff --git a/easyflow-ui-admin/packages/tinyflow-ui/src/components/utils/useCopyPasteHandler.svelte.ts b/easyflow-ui-admin/packages/tinyflow-ui/src/components/utils/useCopyPasteHandler.svelte.ts
index 3bc0bd0c..75ac3954 100644
--- a/easyflow-ui-admin/packages/tinyflow-ui/src/components/utils/useCopyPasteHandler.svelte.ts
+++ b/easyflow-ui-admin/packages/tinyflow-ui/src/components/utils/useCopyPasteHandler.svelte.ts
@@ -1,4 +1,4 @@
-import { store } from '#store/stores.svelte';
+import { useTinyflowStore } from '#store/stores.svelte';
 import { genShortId } from '#components/utils/IdGen';
 import { type Edge, type Node, useSvelteFlow } from '@xyflow/svelte';
 
@@ -119,6 +119,7 @@ function rewriteRefsInData(obj: any, idMap: Map<string, string>): any {
  * 复制粘贴处理器 Hook
  */
 export const useCopyPasteHandler = () => {
+  const store = useTinyflowStore();
   const svelteFlow = useSvelteFlow();
 
   const copyHandler = async (event: ClipboardEvent | KeyboardEvent) => {
diff --git a/easyflow-ui-admin/packages/tinyflow-ui/src/components/utils/useDeleteEdge.svelte.ts b/easyflow-ui-admin/packages/tinyflow-ui/src/components/utils/useDeleteEdge.svelte.ts
index a5026b83..9429fa53 100644
--- a/easyflow-ui-admin/packages/tinyflow-ui/src/components/utils/useDeleteEdge.svelte.ts
+++ b/easyflow-ui-admin/packages/tinyflow-ui/src/components/utils/useDeleteEdge.svelte.ts
@@ -1,6 +1,7 @@
-import { store } from '#store/stores.svelte';
+import { useTinyflowStore } from '#store/stores.svelte';
 
 export const useDeleteEdge = () => {
+  const store = useTinyflowStore();
   const deleteEdge = (id: string) => {
     store.removeEdge(id);
   };
diff --git a/easyflow-ui-admin/packages/tinyflow-ui/src/components/utils/useDeleteNode.svelte.ts b/easyflow-ui-admin/packages/tinyflow-ui/src/components/utils/useDeleteNode.svelte.ts
index 9ed08299..b0ddf325 100644
--- a/easyflow-ui-admin/packages/tinyflow-ui/src/components/utils/useDeleteNode.svelte.ts
+++ b/easyflow-ui-admin/packages/tinyflow-ui/src/components/utils/useDeleteNode.svelte.ts
@@ -1,6 +1,7 @@
-import { store } from '#store/stores.svelte';
+import { useTinyflowStore } from '#store/stores.svelte';
 
 export const useDeleteNode = () => {
+  const store = useTinyflowStore();
   const deleteNode = (id: string) => {
     store.removeNode(id);
     store.updateEdges((edges) =>
diff --git a/easyflow-ui-admin/packages/tinyflow-ui/src/components/utils/useEnsureParentInNodesBefore.svelte.ts b/easyflow-ui-admin/packages/tinyflow-ui/src/components/utils/useEnsureParentInNodesBefore.svelte.ts
index 37721309..ab57c7c0 100644
--- a/easyflow-ui-admin/packages/tinyflow-ui/src/components/utils/useEnsureParentInNodesBefore.svelte.ts
+++ b/easyflow-ui-admin/packages/tinyflow-ui/src/components/utils/useEnsureParentInNodesBefore.svelte.ts
@@ -1,6 +1,7 @@
-import { store } from '../../store/stores.svelte';
+import { useTinyflowStore } from '../../store/stores.svelte';
 
 export const useEnsureParentInNodesBefore = () => {
+  const store = useTinyflowStore();
   const ensureParentInNodesBefore = (
     parentNodeId: string,
     childNodeId: string,
diff --git a/easyflow-ui-admin/packages/tinyflow-ui/src/components/utils/useGetEdgesBySource.svelte.ts b/easyflow-ui-admin/packages/tinyflow-ui/src/components/utils/useGetEdgesBySource.svelte.ts
index 310f40de..a5f639bf 100644
--- a/easyflow-ui-admin/packages/tinyflow-ui/src/components/utils/useGetEdgesBySource.svelte.ts
+++ b/easyflow-ui-admin/packages/tinyflow-ui/src/components/utils/useGetEdgesBySource.svelte.ts
@@ -1,6 +1,7 @@
-import { store } from '#store/stores.svelte';
+import { useTinyflowStore } from '#store/stores.svelte';
 
 export const useGetEdgesBySource = () => {
+  const store = useTinyflowStore();
   const getEdgesBySource = (target: string) => {
     const edges = store.getEdges();
     return edges.filter((edge) => edge.source === target);
diff --git a/easyflow-ui-admin/packages/tinyflow-ui/src/components/utils/useGetEdgesByTarget.svelte.ts b/easyflow-ui-admin/packages/tinyflow-ui/src/components/utils/useGetEdgesByTarget.svelte.ts
index 3bf660cc..de289726 100644
--- a/easyflow-ui-admin/packages/tinyflow-ui/src/components/utils/useGetEdgesByTarget.svelte.ts
+++ b/easyflow-ui-admin/packages/tinyflow-ui/src/components/utils/useGetEdgesByTarget.svelte.ts
@@ -1,6 +1,7 @@
-import { store } from '#store/stores.svelte';
+import { useTinyflowStore } from '#store/stores.svelte';
 
 export const useGetEdgesByTarget = () => {
+  const store = useTinyflowStore();
   const getEdgesByTarget = (target: string) => {
     const edges = store.getEdges();
     return edges.filter((edge) => edge.target === target);
diff --git a/easyflow-ui-admin/packages/tinyflow-ui/src/components/utils/useGetNode.svelte.ts b/easyflow-ui-admin/packages/tinyflow-ui/src/components/utils/useGetNode.svelte.ts
index 2ec7e2ff..7ce8679d 100644
--- a/easyflow-ui-admin/packages/tinyflow-ui/src/components/utils/useGetNode.svelte.ts
+++ b/easyflow-ui-admin/packages/tinyflow-ui/src/components/utils/useGetNode.svelte.ts
@@ -1,6 +1,7 @@
-import { store } from '#store/stores.svelte';
+import { useTinyflowStore } from '#store/stores.svelte';
 
 export const useGetNode = () => {
+  const store = useTinyflowStore();
   const getNode = (id: string) => {
     return store.getNode(id);
   };
diff --git a/easyflow-ui-admin/packages/tinyflow-ui/src/components/utils/useGetNodeRelativePosition.svelte.ts b/easyflow-ui-admin/packages/tinyflow-ui/src/components/utils/useGetNodeRelativePosition.svelte.ts
index 2669fbe2..aff9b883 100644
--- a/easyflow-ui-admin/packages/tinyflow-ui/src/components/utils/useGetNodeRelativePosition.svelte.ts
+++ b/easyflow-ui-admin/packages/tinyflow-ui/src/components/utils/useGetNodeRelativePosition.svelte.ts
@@ -1,6 +1,7 @@
-import { store } from '#store/stores.svelte';
+import { useTinyflowStore } from '#store/stores.svelte';
 
 export const useGetNodeRelativePosition = () => {
+  const store = useTinyflowStore();
   const getNodeRelativePosition = (parentNodeId: string) => {
     let node = store.getNode(parentNodeId);
     const position = { x: 0, y: 0 };
diff --git a/easyflow-ui-admin/packages/tinyflow-ui/src/components/utils/useGetNodesFromSource.svelte.ts b/easyflow-ui-admin/packages/tinyflow-ui/src/components/utils/useGetNodesFromSource.svelte.ts
index e02875ab..24fb910b 100644
--- a/easyflow-ui-admin/packages/tinyflow-ui/src/components/utils/useGetNodesFromSource.svelte.ts
+++ b/easyflow-ui-admin/packages/tinyflow-ui/src/components/utils/useGetNodesFromSource.svelte.ts
@@ -1,7 +1,8 @@
-import { store } from '#store/stores.svelte';
+import { useTinyflowStore } from '#store/stores.svelte';
 import type { Edge, Node } from '@xyflow/svelte';
 
 export const useGetNodesFromSource = () => {
+  const store = useTinyflowStore();
   const getEdgesBySource = (target: string, edges: Edge[]) => {
     return edges.filter(
       // 排除循环节点的子节点，否则在多层循环嵌套时不正确
diff --git a/easyflow-ui-admin/packages/tinyflow-ui/src/components/utils/useUpdateEdgeData.svelte.ts b/easyflow-ui-admin/packages/tinyflow-ui/src/components/utils/useUpdateEdgeData.svelte.ts
index 921a2678..abfa522b 100644
--- a/easyflow-ui-admin/packages/tinyflow-ui/src/components/utils/useUpdateEdgeData.svelte.ts
+++ b/easyflow-ui-admin/packages/tinyflow-ui/src/components/utils/useUpdateEdgeData.svelte.ts
@@ -1,6 +1,7 @@
-import { store } from '#store/stores.svelte';
+import { useTinyflowStore } from '#store/stores.svelte';
 
 export const useUpdateEdgeData = () => {
+  const store = useTinyflowStore();
   const updateEdgeData = (
     id: string,
     dataUpdate: any,
diff --git a/easyflow-ui-admin/packages/tinyflow-ui/src/store/stores.svelte.ts b/easyflow-ui-admin/packages/tinyflow-ui/src/store/stores.svelte.ts
index f4c795fd..75313b75 100644
--- a/easyflow-ui-admin/packages/tinyflow-ui/src/store/stores.svelte.ts
+++ b/easyflow-ui-admin/packages/tinyflow-ui/src/store/stores.svelte.ts
@@ -1,9 +1,11 @@
 import { type Edge, type Node, type Viewport } from '@xyflow/svelte';
+import { getContext, setContext } from 'svelte';
 import type { TinyflowNodeNormalizer } from '../utils/nodeInteraction';
 
 const DEFAULT_VIEWPORT: Viewport = { x: 250, y: 100, zoom: 1 };
+const TINYFLOW_STORE_CONTEXT = Symbol('tinyflow_store');
 
-const createStore = () => {
+export const createStore = () => {
   let nodesInternal = $state.raw([] as Node[]);
   let edgesInternal = $state.raw([] as Edge[]);
   let viewport = $state.raw({ ...DEFAULT_VIEWPORT } as Viewport);
@@ -86,4 +88,18 @@ const createStore = () => {
   };
 };
 
-export const store = createStore();
+export type TinyflowStore = ReturnType<typeof createStore>;
+
+export const createTinyflowStoreContext = () => {
+  const store = createStore();
+  setContext(TINYFLOW_STORE_CONTEXT, store);
+  return store;
+};
+
+export const useTinyflowStore = () => {
+  const store = getContext<TinyflowStore | undefined>(TINYFLOW_STORE_CONTEXT);
+  if (!store) {
+    throw new Error('Tinyflow store context is not initialized');
+  }
+  return store;
+};
diff --git a/easyflow-ui-admin/packages/tinyflow-ui/src/tinyflow-store-isolation.test.ts b/easyflow-ui-admin/packages/tinyflow-ui/src/tinyflow-store-isolation.test.ts
new file mode 100644
index 00000000..7224befd
--- /dev/null
+++ b/easyflow-ui-admin/packages/tinyflow-ui/src/tinyflow-store-isolation.test.ts
@@ -0,0 +1,88 @@
+import { beforeEach, describe, expect, it } from 'vitest';
+
+import './components/TinyflowComponent.svelte';
+import { Tinyflow } from './Tinyflow';
+
+const waitForRender = () =>
+  new Promise<void>((resolve) => {
+    setTimeout(resolve, 0);
+  });
+
+describe('tinyflow store isolation', () => {
+  beforeEach(() => {
+    document.body.innerHTML = '';
+  });
+
+  it('keeps simultaneous canvas data isolated', async () => {
+    const firstContainer = document.createElement('div');
+    const secondContainer = document.createElement('div');
+    document.body.append(firstContainer, secondContainer);
+
+    const first = new Tinyflow({
+      element: firstContainer,
+      data: {
+        nodes: [
+          { id: 'first-source', position: { x: 0, y: 0 }, data: {} },
+          { id: 'first-target', position: { x: 300, y: 0 }, data: {} },
+        ],
+        edges: [
+          {
+            id: 'first-edge',
+            source: 'first-source',
+            target: 'first-target',
+          },
+        ],
+      },
+    });
+    const second = new Tinyflow({
+      element: secondContainer,
+      data: {
+        nodes: [
+          { id: 'second-source', position: { x: 0, y: 0 }, data: {} },
+          { id: 'second-target', position: { x: 300, y: 0 }, data: {} },
+        ],
+        edges: [
+          {
+            id: 'second-edge',
+            source: 'second-source',
+            target: 'second-target',
+          },
+        ],
+      },
+    });
+
+    await waitForRender();
+
+    expect(first.getData()?.nodes.map((node) => node.id)).toEqual([
+      'first-source',
+      'first-target',
+    ]);
+    expect(second.getData()?.nodes.map((node) => node.id)).toEqual([
+      'second-source',
+      'second-target',
+    ]);
+
+    first.updateData({
+      nodes: [
+        { id: 'first-updated', position: { x: 100, y: 100 }, data: {} },
+      ],
+      edges: [],
+    });
+    await waitForRender();
+
+    expect(first.getData()?.nodes.map((node) => node.id)).toEqual([
+      'first-updated',
+    ]);
+    expect(first.getData()?.edges).toEqual([]);
+    expect(second.getData()?.nodes.map((node) => node.id)).toEqual([
+      'second-source',
+      'second-target',
+    ]);
+    expect(second.getData()?.edges.map((edge) => edge.id)).toEqual([
+      'second-edge',
+    ]);
+
+    first.destroy();
+    second.destroy();
+  });
+});
diff --git a/easyflow-ui-admin/packages/tinyflow-ui/src/types.ts b/easyflow-ui-admin/packages/tinyflow-ui/src/types.ts
index 42769e0a..9a4c81db 100644
--- a/easyflow-ui-admin/packages/tinyflow-ui/src/types.ts
+++ b/easyflow-ui-admin/packages/tinyflow-ui/src/types.ts
@@ -4,6 +4,10 @@ import type {Node, useSvelteFlow} from '@xyflow/svelte';
 export type TinyflowData = Partial<
   ReturnType<ReturnType<typeof useSvelteFlow>['toObject']>
 >;
+export type TinyflowDataCommitReason =
+  | 'change'
+  | 'node-drag-stop'
+  | 'viewport-move-end';
 export type TinyflowNodeData = Record<string, any>;
 export type TinyflowTheme = 'light' | 'dark';
 
@@ -94,6 +98,7 @@ export type CustomNode = {
     flowInstance: ReturnType<typeof useSvelteFlow>,
   ) => void;
   onUpdate?: (parent: HTMLElement, node: Node) => void;
+  onDestroy?: (parent: HTMLElement) => void;
   forms?: CustomNodeForm[];
 };
 
@@ -115,6 +120,7 @@ export type TinyflowOptions = {
   nodesDraggable?: boolean;
   nodesConnectable?: boolean;
   elementsSelectable?: boolean;
+  onlyRenderVisibleElements?: boolean;
   dropEnabled?: boolean;
   provider?: {
     llm?: () => SelectItem[] | Promise<SelectItem[]>;
@@ -128,6 +134,10 @@ export type TinyflowOptions = {
   onRunTest?: () => void | Promise<void>;
   hiddenNodes?: string[] | (() => string[]);
   onDataChange?: (data: TinyflowData) => void;
+  onDataCommit?: (
+    data: TinyflowData,
+    reason: TinyflowDataCommitReason,
+  ) => void;
 };
 
 export type Parameter = {
diff --git a/easyflow-ui-admin/packages/tinyflow-ui/src/utils/nodeInteraction.test.ts b/easyflow-ui-admin/packages/tinyflow-ui/src/utils/nodeInteraction.test.ts
new file mode 100644
index 00000000..c3e79e06
--- /dev/null
+++ b/easyflow-ui-admin/packages/tinyflow-ui/src/utils/nodeInteraction.test.ts
@@ -0,0 +1,49 @@
+import type { Node } from '@xyflow/svelte';
+
+import { describe, expect, it } from 'vitest';
+
+import {
+  createTinyflowNodeNormalizer,
+  DEFAULT_NODE_DRAG_HANDLE,
+} from './nodeInteraction';
+
+function createNode(patch: Partial<Node> = {}): Node {
+  return {
+    data: {},
+    id: 'node-1',
+    position: { x: 0, y: 0 },
+    type: 'customNode',
+    ...patch,
+  };
+}
+
+describe('createTinyflowNodeNormalizer', () => {
+  it('节点已经规范化时保留引用', () => {
+    const normalizer = createTinyflowNodeNormalizer();
+    const node = createNode({ dragHandle: DEFAULT_NODE_DRAG_HANDLE });
+
+    expect(normalizer(node)).toBe(node);
+  });
+
+  it('需要补齐交互属性时采用写时复制且不修改输入', () => {
+    const normalizer = createTinyflowNodeNormalizer();
+    const node = createNode();
+
+    const normalized = normalizer(node);
+
+    expect(normalized).not.toBe(node);
+    expect(normalized.dragHandle).toBe(DEFAULT_NODE_DRAG_HANDLE);
+    expect(node.dragHandle).toBeUndefined();
+  });
+
+  it('只读节点已经包含限制属性时保留引用', () => {
+    const normalizer = createTinyflowNodeNormalizer({ readonly: true } as any);
+    const node = createNode({
+      connectable: false,
+      draggable: false,
+      selectable: false,
+    });
+
+    expect(normalizer(node)).toBe(node);
+  });
+});
diff --git a/easyflow-ui-admin/packages/tinyflow-ui/src/utils/nodeInteraction.ts b/easyflow-ui-admin/packages/tinyflow-ui/src/utils/nodeInteraction.ts
index 541fd2ff..2c3f1275 100644
--- a/easyflow-ui-admin/packages/tinyflow-ui/src/utils/nodeInteraction.ts
+++ b/easyflow-ui-admin/packages/tinyflow-ui/src/utils/nodeInteraction.ts
@@ -25,33 +25,45 @@ export function createTinyflowNodeNormalizer(
   const elementsSelectable = options?.elementsSelectable ?? !readonly;
 
   return (node) => {
-    const nextNode = { ...node };
+    let nextNode = node;
+    const mutableNode = () => {
+      if (nextNode === node) {
+        nextNode = { ...node };
+      }
+      return nextNode;
+    };
 
     if (nodesDraggable) {
       if (nextNode.draggable === false) {
-        delete nextNode.draggable;
+        delete mutableNode().draggable;
       }
       if (shouldUseDefaultDragHandle(nextNode, options?.customNodes)) {
-        nextNode.dragHandle = DEFAULT_NODE_DRAG_HANDLE;
+        mutableNode().dragHandle = DEFAULT_NODE_DRAG_HANDLE;
       }
     } else {
-      nextNode.draggable = false;
+      if (nextNode.draggable !== false) {
+        mutableNode().draggable = false;
+      }
     }
 
     if (nodesConnectable) {
       if (nextNode.connectable === false) {
-        delete nextNode.connectable;
+        delete mutableNode().connectable;
       }
     } else {
-      nextNode.connectable = false;
+      if (nextNode.connectable !== false) {
+        mutableNode().connectable = false;
+      }
     }
 
     if (elementsSelectable) {
       if (nextNode.selectable === false) {
-        delete nextNode.selectable;
+        delete mutableNode().selectable;
       }
     } else {
-      nextNode.selectable = false;
+      if (nextNode.selectable !== false) {
+        mutableNode().selectable = false;
+      }
     }
 
     return nextNode;
diff --git a/easyflow-ui-admin/packages/tinyflow-vue/src/Tinyflow.vue b/easyflow-ui-admin/packages/tinyflow-vue/src/Tinyflow.vue
index 5b1a6668..2ab83b0a 100644
--- a/easyflow-ui-admin/packages/tinyflow-vue/src/Tinyflow.vue
+++ b/easyflow-ui-admin/packages/tinyflow-vue/src/Tinyflow.vue
@@ -3,7 +3,9 @@
 </template>
 
 <script setup lang="ts">
-import {Tinyflow as TinyflowNative, TinyflowOptions} from '@tinyflow-ai/ui';
+import type { TinyflowOptions } from '@tinyflow-ai/ui';
+
+import { Tinyflow as TinyflowNative } from '@tinyflow-ai/ui';
 import '@tinyflow-ai/ui/dist/index.css';
 import {
   getCurrentInstance,
@@ -15,8 +17,7 @@ import {
   watch,
 } from 'vue';
 
-type TinyflowDataOption = Exclude<TinyflowOptions['data'], string | undefined>;
-type StructuredCloneFn = <T>(value: T) => T;
+import { createTinyflowDataSync } from './dataSync';
 
 const props = defineProps<
   {
@@ -30,7 +31,7 @@ const attrs = useAttrs();
 const instance = getCurrentInstance();
 let tinyflow: TinyflowNative | null = null;
 let mountedDataReady = false;
-let lastAppliedDataSignature = '';
+const dataSync = createTinyflowDataSync();
 const optionalBooleanOptionKeys = new Set([
   'readonly',
   'hideBottomDock',
@@ -45,6 +46,7 @@ const optionalBooleanOptionKeys = new Set([
   'nodesDraggable',
   'nodesConnectable',
   'elementsSelectable',
+  'onlyRenderVisibleElements',
   'dropEnabled',
 ]);
 
@@ -81,58 +83,6 @@ function normalizeProps(source: Record<string, unknown>) {
   );
 }
 
-// 安全深拷贝工具函数
-function safeDeepClone<T>(obj: T): T {
-  if (obj === null || typeof obj !== 'object') return obj;
-
-  try {
-    const clone = (globalThis as { structuredClone?: StructuredCloneFn })
-      .structuredClone;
-    if (clone) {
-      return clone(obj);
-    }
-  } catch {
-    // Fall through to JSON cloning for browsers without native structuredClone.
-  }
-
-  try {
-    return JSON.parse(JSON.stringify(obj));
-  } catch {
-    try {
-      console.warn(
-        'Failed to clone object, returning original (may cause issues)',
-        obj,
-      );
-      return obj;
-    } catch {
-      return obj;
-    }
-  }
-}
-
-function createDataSignature(data: unknown) {
-  if (data == null || typeof data === 'string') {
-    return String(data ?? '');
-  }
-  try {
-    return JSON.stringify(data);
-  } catch {
-    return '';
-  }
-}
-
-function cloneDataIfChanged(data: TinyflowOptions['data']) {
-  if (data == null || typeof data === 'string') {
-    return null;
-  }
-  const signature = createDataSignature(data);
-  if (signature && signature === lastAppliedDataSignature) {
-    return null;
-  }
-  lastAppliedDataSignature = signature;
-  return safeDeepClone(data as TinyflowDataOption);
-}
-
 onMounted(() => {
   if (divRef.value) {
     // 净化 props.data，避免响应式对象或函数污染
@@ -141,8 +91,21 @@ onMounted(() => {
       ...normalizeProps(props),
     } as any;
     if ('data' in cleanedProps && cleanedProps.data != null) {
-      cleanedProps.data = cloneDataIfChanged(cleanedProps.data);
+      cleanedProps.data = dataSync.cloneExternalDataIfChanged(cleanedProps.data);
     }
+    (['onDataChange', 'onDataCommit'] as const).forEach((callbackKey) => {
+      const callback = cleanedProps[callbackKey];
+      if (typeof callback !== 'function') {
+        return;
+      }
+      cleanedProps[callbackKey] = (
+        data: TinyflowOptions['data'],
+        ...args: unknown[]
+      ) => {
+        dataSync.markNativeData(data);
+        callback(data, ...args);
+      };
+    });
 
     tinyflow = new TinyflowNative({
       ...cleanedProps,
@@ -158,7 +121,7 @@ onUnmounted(() => {
     tinyflow = null;
   }
   mountedDataReady = false;
-  lastAppliedDataSignature = '';
+  dataSync.reset();
 });
 
 watch(
@@ -179,7 +142,7 @@ watch(
       data != null &&
       typeof data !== 'string'
     ) {
-      const clonedData = cloneDataIfChanged(data);
+      const clonedData = dataSync.cloneExternalDataIfChanged(data);
       if (clonedData) {
         tinyflow.updateData(clonedData, { preserveViewport: true });
       }
@@ -229,7 +192,7 @@ const updateData = (
   options?: { preserveViewport?: boolean },
 ) => {
   if (tinyflow && data != null && typeof data !== 'string') {
-    const clonedData = cloneDataIfChanged(data);
+    const clonedData = dataSync.cloneExternalDataIfChanged(data);
     if (!clonedData) {
       return true;
     }
diff --git a/easyflow-ui-admin/packages/tinyflow-vue/src/dataSync.test.ts b/easyflow-ui-admin/packages/tinyflow-vue/src/dataSync.test.ts
new file mode 100644
index 00000000..6dba33ce
--- /dev/null
+++ b/easyflow-ui-admin/packages/tinyflow-vue/src/dataSync.test.ts
@@ -0,0 +1,76 @@
+import { describe, expect, it } from 'vitest';
+
+import { createTinyflowDataSync } from './dataSync';
+
+describe('createTinyflowDataSync', () => {
+  it('克隆真正的外部数据并跳过相同内容', () => {
+    const sync = createTinyflowDataSync();
+    const data = {
+      edges: [],
+      nodes: [{ data: { title: '开始' }, id: 'start', position: { x: 0, y: 0 } }],
+    };
+
+    const cloned = sync.cloneExternalDataIfChanged(data);
+
+    expect(cloned).toEqual(data);
+    expect(cloned).not.toBe(data);
+    expect(sync.cloneExternalDataIfChanged(data)).toBeNull();
+  });
+
+  it('跳过原生画布回传后由父组件形成的属性回声', () => {
+    const sync = createTinyflowDataSync();
+    const emitted = {
+      edges: [],
+      nodes: [{ data: { title: '开始' }, id: 'start', position: { x: 12, y: 8 } }],
+      viewport: { x: 20, y: 30, zoom: 1 },
+    };
+
+    sync.markNativeData(emitted);
+
+    expect(
+      sync.cloneExternalDataIfChanged(structuredClone(emitted)),
+    ).toBeNull();
+  });
+
+  it('原生回传后仍应用内容不同的外部更新', () => {
+    const sync = createTinyflowDataSync();
+    const emitted = {
+      edges: [],
+      nodes: [{ data: { title: '开始' }, id: 'start', position: { x: 12, y: 8 } }],
+    };
+    sync.markNativeData(emitted);
+
+    const external = {
+      ...emitted,
+      nodes: [
+        {
+          ...emitted.nodes[0],
+          data: { title: '已更新' },
+        },
+      ],
+    };
+
+    expect(sync.cloneExternalDataIfChanged(external)).toEqual(external);
+  });
+
+  it('画布变化后允许重新应用曾经加载过的外部版本', () => {
+    const sync = createTinyflowDataSync();
+    const initial = {
+      edges: [],
+      nodes: [{ data: { title: '初始' }, id: 'start', position: { x: 0, y: 0 } }],
+    };
+    expect(sync.cloneExternalDataIfChanged(initial)).toEqual(initial);
+
+    sync.markNativeData({
+      ...initial,
+      nodes: [
+        {
+          ...initial.nodes[0],
+          position: { x: 120, y: 80 },
+        },
+      ],
+    });
+
+    expect(sync.cloneExternalDataIfChanged(initial)).toEqual(initial);
+  });
+});
diff --git a/easyflow-ui-admin/packages/tinyflow-vue/src/dataSync.ts b/easyflow-ui-admin/packages/tinyflow-vue/src/dataSync.ts
new file mode 100644
index 00000000..4e6f3d46
--- /dev/null
+++ b/easyflow-ui-admin/packages/tinyflow-vue/src/dataSync.ts
@@ -0,0 +1,86 @@
+import type { TinyflowOptions } from '@tinyflow-ai/ui';
+
+type TinyflowDataOption = Exclude<
+  TinyflowOptions['data'],
+  string | undefined
+>;
+type StructuredCloneFn = <T>(value: T) => T;
+
+function createDataSignature(data: unknown) {
+  if (data == null || typeof data === 'string') {
+    return String(data ?? '');
+  }
+  try {
+    return JSON.stringify(data);
+  } catch {
+    return '';
+  }
+}
+
+function safeDeepClone<T>(value: T): T {
+  if (value === null || typeof value !== 'object') {
+    return value;
+  }
+
+  try {
+    const clone = (globalThis as { structuredClone?: StructuredCloneFn })
+      .structuredClone;
+    if (clone) {
+      return clone(value);
+    }
+  } catch {
+    // Fall through to JSON cloning for browsers without native structuredClone.
+  }
+
+  try {
+    return JSON.parse(JSON.stringify(value));
+  } catch {
+    console.warn(
+      'Failed to clone object, returning original (may cause issues)',
+      value,
+    );
+    return value;
+  }
+}
+
+/**
+ * 维护 Vue 属性数据与 Tinyflow 原生数据之间的同步边界。
+ *
+ * 原生画布回传的数据会被父组件再次作为属性传入。延迟到属性更新时再比较
+ * 两侧签名，可以阻止同一份画布状态被重新深拷贝并整图应用，同时避免在
+ * 每一帧提前序列化完整画布。
+ */
+export function createTinyflowDataSync() {
+  let lastAppliedDataSignature = '';
+  let lastNativeData: TinyflowOptions['data'] | null = null;
+
+  return {
+    cloneExternalDataIfChanged(data: TinyflowOptions['data']) {
+      if (data == null || typeof data === 'string') {
+        return null;
+      }
+      const signature = createDataSignature(data);
+      if (lastNativeData != null) {
+        const nativeSignature = createDataSignature(lastNativeData);
+        lastNativeData = null;
+        if (signature && signature === nativeSignature) {
+          lastAppliedDataSignature = signature;
+          return null;
+        }
+        lastAppliedDataSignature = '';
+      }
+      if (signature && signature === lastAppliedDataSignature) {
+        return null;
+      }
+      lastAppliedDataSignature = signature;
+      return safeDeepClone(data as TinyflowDataOption);
+    },
+    markNativeData(data: TinyflowOptions['data']) {
+      lastNativeData = data;
+    },
+    reset() {
+      lastAppliedDataSignature = '';
+      lastNativeData = null;
+    },
+  };
+}