diff --git a/apps/desktop/src/renderer/App.tsx b/apps/desktop/src/renderer/App.tsx
index 369393a..429c950 100644
--- a/apps/desktop/src/renderer/App.tsx
+++ b/apps/desktop/src/renderer/App.tsx
@@ -29,7 +29,9 @@ import { OutlinePanel } from './features/outline/OutlinePanel';
 import { DocInfoPanel } from './features/doc-info/DocInfoPanel';
 
 export function App() {
-  const { loadVault, loadTree, openDoc } = useStore();
+  const loadVault = useStore(s => s.loadVault);
+  const loadTree = useStore(s => s.loadTree);
+  const openDoc = useStore(s => s.openDoc);
   const { restore, tabs, activeId } = useTabs();
   const [rightTab, setRightTab] = useState<'outline' | 'info'>('outline');
   const [view, setView] = useState<'editor' | 'graph'>('editor');
diff --git a/apps/desktop/src/renderer/features/doc-info/DocInfoPanel.tsx b/apps/desktop/src/renderer/features/doc-info/DocInfoPanel.tsx
index 38796fc..57a4c93 100644
--- a/apps/desktop/src/renderer/features/doc-info/DocInfoPanel.tsx
+++ b/apps/desktop/src/renderer/features/doc-info/DocInfoPanel.tsx
@@ -5,7 +5,15 @@ import { IPC } from '@hunter/shared';
 import type { TreeNode } from '@hunter/shared';
 
 export function DocInfoPanel() {
-  const { currentPath, title, meta, tree, toggleStar, addTag, removeTag, addLink, removeLink } = useStore();
+  const currentPath = useStore(s => s.currentPath);
+  const title = useStore(s => s.title);
+  const meta = useStore(s => s.meta);
+  const tree = useStore(s => s.tree);
+  const toggleStar = useStore(s => s.toggleStar);
+  const addTag = useStore(s => s.addTag);
+  const removeTag = useStore(s => s.removeTag);
+  const addLink = useStore(s => s.addLink);
+  const removeLink = useStore(s => s.removeLink);
   const [tagInput, setTagInput] = useState('');
   const [linkInput, setLinkInput] = useState('');
 
diff --git a/apps/desktop/src/renderer/features/editor/Editor.tsx b/apps/desktop/src/renderer/features/editor/Editor.tsx
index 42c35d7..ad9d01e 100644
--- a/apps/desktop/src/renderer/features/editor/Editor.tsx
+++ b/apps/desktop/src/renderer/features/editor/Editor.tsx
@@ -10,7 +10,9 @@ function saveLabel(s: SaveState): string {
 }
 
 export function Editor() {
-  const { currentPath, title, saveState } = useStore();
+  const currentPath = useStore(s => s.currentPath);
+  const title = useStore(s => s.title);
+  const saveState = useStore(s => s.saveState);
   if (!currentPath) {
     return (
       <div style={{ flex: 1, display: 'flex', alignItems: 'center', justifyContent: 'center', opacity: 0.4 }}>
diff --git a/apps/desktop/src/renderer/features/editor/MoreActions.tsx b/apps/desktop/src/renderer/features/editor/MoreActions.tsx
index f4abae8..4245d4d 100644
--- a/apps/desktop/src/renderer/features/editor/MoreActions.tsx
+++ b/apps/desktop/src/renderer/features/editor/MoreActions.tsx
@@ -4,7 +4,9 @@ import { IPC } from '@hunter/shared';
 import { useState } from 'react';
 
 export function MoreActions() {
-  const { currentPath, body, openDoc } = useStore();
+  const currentPath = useStore(s => s.currentPath);
+  const body = useStore(s => s.body);
+  const openDoc = useStore(s => s.openDoc);
   const [open, setOpen] = useState(false);
   if (!currentPath) return null;
   // FR-X1：复制全文——成功/失败均提示
diff --git a/apps/desktop/src/renderer/features/editor/TiptapEditor.tsx b/apps/desktop/src/renderer/features/editor/TiptapEditor.tsx
index 73d89f0..7f60c13 100644
--- a/apps/desktop/src/renderer/features/editor/TiptapEditor.tsx
+++ b/apps/desktop/src/renderer/features/editor/TiptapEditor.tsx
@@ -40,7 +40,8 @@ const Img = Image.extend({
 });
 
 export function TiptapEditor() {
-  const { currentPath, body, setBody } = useStore();
+  const currentPath = useStore(s => s.currentPath);
+  const setBody = useStore(s => s.setBody);
   const skipUpdate = useRef(false);
   const editorRef = useRef<Editor | null>(null);
 
@@ -61,7 +62,7 @@ export function TiptapEditor() {
       MathBlock,
       InlineMath,
     ],
-    content: body,
+    content: useStore.getState().body,
     editorProps: {
       // FR-E6：剪贴板粘贴图片 -> 入库 .attachments -> 插入相对路径
       handlePaste: (_view, event) => {
@@ -104,6 +105,7 @@ export function TiptapEditor() {
       return;
     }
     useEditorShared.getState().setEditor(editor);
+    const body = useStore.getState().body;
     skipUpdate.current = true;
     editor.commands.setContent(body || '', { emitUpdate: false });
     skipUpdate.current = false;
diff --git a/apps/desktop/src/renderer/features/file-tree/FileTree.tsx b/apps/desktop/src/renderer/features/file-tree/FileTree.tsx
index ce5825b..0d3105f 100644
--- a/apps/desktop/src/renderer/features/file-tree/FileTree.tsx
+++ b/apps/desktop/src/renderer/features/file-tree/FileTree.tsx
@@ -7,7 +7,13 @@ import { useDialog } from '../dialog/dialog-store';
 import { useTabs } from '../tabs/tab-store';
 
 export function FileTree() {
-  const { tree, loadTree, treeLoading, openDoc, currentPath, syncCurrentPath, tagFilter } = useStore();
+  const tree = useStore(s => s.tree);
+  const loadTree = useStore(s => s.loadTree);
+  const treeLoading = useStore(s => s.treeLoading);
+  const openDoc = useStore(s => s.openDoc);
+  const currentPath = useStore(s => s.currentPath);
+  const syncCurrentPath = useStore(s => s.syncCurrentPath);
+  const tagFilter = useStore(s => s.tagFilter);
   const { showInput, showConfirm, showAlert } = useDialog();
   const [collapsed, setCollapsed] = useState<Set<string>>(new Set());
   const [renaming, setRenaming] = useState<string | null>(null);
diff --git a/apps/desktop/src/renderer/features/graph/GraphView.tsx b/apps/desktop/src/renderer/features/graph/GraphView.tsx
index 9e78bd4..604d80e 100644
--- a/apps/desktop/src/renderer/features/graph/GraphView.tsx
+++ b/apps/desktop/src/renderer/features/graph/GraphView.tsx
@@ -53,7 +53,8 @@ const MARKMAP_OPTIONS = {
 function MindmapTree() {
   const svgRef = useRef<SVGSVGElement>(null);
   const mmRef = useRef<Markmap | null>(null);
-  const { tree, openDoc } = useStore();
+  const tree = useStore(s => s.tree);
+  const openDoc = useStore(s => s.openDoc);
 
   useEffect(() => {
     const svg = svgRef.current;
diff --git a/apps/desktop/src/renderer/features/graph/LinkGraph.tsx b/apps/desktop/src/renderer/features/graph/LinkGraph.tsx
index 548a0ef..6baf81b 100644
--- a/apps/desktop/src/renderer/features/graph/LinkGraph.tsx
+++ b/apps/desktop/src/renderer/features/graph/LinkGraph.tsx
@@ -13,7 +13,7 @@ const truncate = (s: string, n: number) => (s.length > n ? s.slice(0, n - 1) + '
 
 export function LinkGraph({ onSwitchToEditor }: { onSwitchToEditor?: () => void }) {
   const svgRef = useRef<SVGSVGElement>(null);
-  const { openDoc } = useStore();
+  const openDoc = useStore(s => s.openDoc);
   const [data, setData] = useState<GraphData | null>(null);
   const [err, setErr] = useState<string | null>(null);
   const zoomRef = useRef<{ zoomBeh: any; svg: any; g: any } | null>(null);
diff --git a/apps/desktop/src/renderer/features/outline/OutlinePanel.tsx b/apps/desktop/src/renderer/features/outline/OutlinePanel.tsx
index 685892f..51b71eb 100644
--- a/apps/desktop/src/renderer/features/outline/OutlinePanel.tsx
+++ b/apps/desktop/src/renderer/features/outline/OutlinePanel.tsx
@@ -12,7 +12,7 @@ export function OutlinePanel() {
   const [activeIdx, setActiveIdx] = useState(-1);
   const listRef = useRef<HTMLDivElement>(null);
 
-  // 收集标题——currentPath 变化时重新收集（setContent 用 emitUpdate:false 不触发 update 事件）
+  // 收集标题——debounce 300ms，避免每次按键都遍历文档树
   useEffect(() => {
     if (!editor) return;
     const doCollect = () => {
@@ -24,11 +24,11 @@ export function OutlinePanel() {
       });
       setHeadings(items);
     };
-    // rAF 延迟到下一帧，确保 TiptapEditor 的 setContent 已完成
     const raf = requestAnimationFrame(doCollect);
-    // 编辑时实时跟随
-    editor.on('update', doCollect);
-    return () => { editor.off('update', doCollect); cancelAnimationFrame(raf); };
+    let timer: ReturnType<typeof setTimeout> | null = null;
+    const debounced = () => { if (timer) clearTimeout(timer); timer = setTimeout(doCollect, 300); };
+    editor.on('update', debounced);
+    return () => { editor.off('update', debounced); cancelAnimationFrame(raf); if (timer) clearTimeout(timer); };
   }, [editor, currentPath]);
 
   // FR-O3：编辑器滚动联动——计算当前可见标题，高亮大纲并自动滚动大纲
@@ -43,24 +43,30 @@ export function OutlinePanel() {
     }
     if (!scrollEl) return;
 
+    // rAF 节流——滚动事件高频触发，coordsAtPos 计算开销大
+    let ticking = false;
     const onScroll = () => {
-      const containerTop = scrollEl!.getBoundingClientRect().top;
-      let current = 0; // 默认第一个标题
-      for (let i = 0; i < headings.length; i++) {
-        const coords = editor!.view.coordsAtPos(headings[i].pos + 1);
-        if (coords.top - containerTop <= 100) current = i;
-        else break;
-      }
-      if (current !== activeRef.current) {
-        activeRef.current = current;
-        setActiveIdx(current);
-        // 大纲自身滚动到当前项
-        const el = listRef.current?.querySelector(`[data-idx="${current}"]`) as HTMLElement | null;
-        el?.scrollIntoView({ block: 'nearest' });
-      }
+      if (ticking) return;
+      ticking = true;
+      requestAnimationFrame(() => {
+        const containerTop = scrollEl!.getBoundingClientRect().top;
+        let current = 0;
+        for (let i = 0; i < headings.length; i++) {
+          const coords = editor!.view.coordsAtPos(headings[i].pos + 1);
+          if (coords.top - containerTop <= 100) current = i;
+          else break;
+        }
+        if (current !== activeRef.current) {
+          activeRef.current = current;
+          setActiveIdx(current);
+          const el = listRef.current?.querySelector(`[data-idx="${current}"]`) as HTMLElement | null;
+          el?.scrollIntoView({ block: 'nearest' });
+        }
+        ticking = false;
+      });
     };
     scrollEl.addEventListener('scroll', onScroll, { passive: true });
-    onScroll(); // 初始计算
+    onScroll();
     return () => { scrollEl!.removeEventListener('scroll', onScroll); };
   }, [editor, headings]);
 
diff --git a/apps/desktop/src/renderer/features/search/SearchBox.tsx b/apps/desktop/src/renderer/features/search/SearchBox.tsx
index f48e91a..138931b 100644
--- a/apps/desktop/src/renderer/features/search/SearchBox.tsx
+++ b/apps/desktop/src/renderer/features/search/SearchBox.tsx
@@ -5,7 +5,8 @@ import type { SearchHit } from '@hunter/shared';
 import { useStore } from '../../store';
 
 export function SearchBox() {
-  const { openDoc, loadTree } = useStore();
+  const openDoc = useStore(s => s.openDoc);
+  const loadTree = useStore(s => s.loadTree);
   const [q, setQ] = useState('');
   const [hits, setHits] = useState<SearchHit[]>([]);
   const [searching, setSearching] = useState(false);
diff --git a/apps/desktop/src/renderer/features/search/TagFilter.tsx b/apps/desktop/src/renderer/features/search/TagFilter.tsx
index cb6590d..94ff338 100644
--- a/apps/desktop/src/renderer/features/search/TagFilter.tsx
+++ b/apps/desktop/src/renderer/features/search/TagFilter.tsx
@@ -4,7 +4,7 @@ import { IPC, type TagStat } from '@hunter/shared';
 import { useStore } from '../../store';
 
 export function TagFilter() {
-  const { tree } = useStore();
+  const tree = useStore(s => s.tree);
   const [tags, setTags] = useState<TagStat[]>([]);
   const [selected, setSelected] = useState<string[]>([]);
   const [collapsed, setCollapsed] = useState(false);
diff --git a/apps/desktop/src/renderer/features/settings/SettingsPanel.tsx b/apps/desktop/src/renderer/features/settings/SettingsPanel.tsx
index a2a6a78..bb4cfdd 100644
--- a/apps/desktop/src/renderer/features/settings/SettingsPanel.tsx
+++ b/apps/desktop/src/renderer/features/settings/SettingsPanel.tsx
@@ -103,7 +103,9 @@ function dot(on: boolean): React.CSSProperties { return { position: 'absolute',
 
 // FR-V5: 默认库路径设置页——查看当前库、浏览选择、立即切换
 function PathPage() {
-  const { vault, loadVault, loadTree } = useStore();
+  const vault = useStore(s => s.vault);
+  const loadVault = useStore(s => s.loadVault);
+  const loadTree = useStore(s => s.loadTree);
   const [val, setVal] = useState(vault?.currentRoot ?? '');
   const [msg, setMsg] = useState('');
   const browse = async () => { const p = await invoke(IPC.vaultBrowse, undefined as never); if (p) setVal(p); };
diff --git a/apps/desktop/src/renderer/features/shell/TitleBar.tsx b/apps/desktop/src/renderer/features/shell/TitleBar.tsx
index 5ea378f..28bae1e 100644
--- a/apps/desktop/src/renderer/features/shell/TitleBar.tsx
+++ b/apps/desktop/src/renderer/features/shell/TitleBar.tsx
@@ -7,7 +7,7 @@ const drag = { WebkitAppRegion: 'drag', flex: 1, height: '100%' } as React.CSSPr
 const noDrag = { WebkitAppRegion: 'no-drag' } as React.CSSProperties;
 
 export function TitleBar({ onToggleView, view, onSettings, onAppearance, onToggleSidebar, onToggleMinimal, onToggleTabbar, minimal, tabbarVisible }: { onToggleView: () => void; view: 'editor' | 'graph'; onSettings: () => void; onAppearance: () => void; onToggleSidebar: () => void; onToggleMinimal: () => void; onToggleTabbar: () => void; minimal: boolean; tabbarVisible: boolean }) {
-  const { loadTree } = useStore();
+  const loadTree = useStore(s => s.loadTree);
   const [maximized, setMaximized] = useState(false);
   useEffect(() => { invoke(IPC.winIsMaximized, undefined as never).then(setMaximized).catch(() => {}); }, []);
   return (
diff --git a/apps/desktop/src/renderer/features/tabs/TabBar.tsx b/apps/desktop/src/renderer/features/tabs/TabBar.tsx
index 570cbe5..1e9fec6 100644
--- a/apps/desktop/src/renderer/features/tabs/TabBar.tsx
+++ b/apps/desktop/src/renderer/features/tabs/TabBar.tsx
@@ -4,11 +4,12 @@ import { useEffect, useState } from 'react';
 
 export function TabBar() {
   const { tabs, activeId, setActive, closeTab, togglePin } = useTabs();
-  const { openDoc, currentPath } = useStore();
+  const openDoc = useStore(s => s.openDoc);
+  const currentPath = useStore(s => s.currentPath);
+  const resetEditor = useStore(s => s.resetEditor);
   const [hoveredTab, setHoveredTab] = useState<string | null>(null);
 
   // 当 activeId 变化，加载对应标签的文档；标签全部关闭时清空编辑器
-  const resetEditor = useStore(s => s.resetEditor);
   useEffect(() => {
     const tab = tabs.find(t => t.id === activeId);
     if (tab && tab.path !== currentPath) openDoc(tab.path);