diff --git a/frontend/src/components/ListColumnCustomizer.tsx b/frontend/src/components/ListColumnCustomizer.tsx
index 0998e08..5eb25aa 100644
--- a/frontend/src/components/ListColumnCustomizer.tsx
+++ b/frontend/src/components/ListColumnCustomizer.tsx
@@ -6,7 +6,7 @@
  * - 下半区「内置列」：按业务分组折叠
  * - 底部「扩展数据列」：复用 ext_data schema，按需添加字段
  */
-import React, { useState, useCallback, useEffect, useMemo } from 'react'
+import React, { useState, useCallback, useEffect, useMemo, useRef } from 'react'
 import { motion, AnimatePresence } from 'framer-motion'
 import {
   DndContext, closestCenter, KeyboardSensor, PointerSensor,
@@ -39,6 +39,13 @@ interface ListColumnCustomizerProps {
   showExtColumns?: boolean
   /** 是否显示「单独显示」勾选项（默认 false；仅信息条场景启用，让某列独占一行）。 */
   showStandaloneToggle?: boolean
+  /**
+   * 是否禁用遮罩背景模糊 (backdrop-blur)。默认 false。
+   * 信息条场景 (宿主含 Canvas K线/分时图) 传 true：blur 会对 Canvas 做逐帧 GPU 合成，
+   * 是抽屉打开/滑动卡顿的主因；改纯半透明遮罩后合成层锐减。
+   * 选股/自选页背后是 DOM 表格，blur 开销可忽略，保持默认。
+   */
+  disableBackdropBlur?: boolean
 }
 
 /** 判断扩展数据字段类型是否为数字(int/float/double/number/decimal 等)。
@@ -60,10 +67,10 @@ function SortableActiveCol({ col, onRemove, onConfig, configOpen, extTableLabel,
   onConfig: (id: string | null) => void
   configOpen: boolean
   extTableLabel: string
-  extConfig: React.ReactNode
-  candleConfig: React.ReactNode
-  intradayConfig: React.ReactNode
-  strategiesConfig: React.ReactNode
+  extConfig: () => React.ReactNode
+  candleConfig: () => React.ReactNode
+  intradayConfig: () => React.ReactNode
+  strategiesConfig: () => React.ReactNode
   showStandaloneToggle?: boolean
   onToggleStandalone?: (id: string) => void
 }) {
@@ -132,7 +139,7 @@ function SortableActiveCol({ col, onRemove, onConfig, configOpen, extTableLabel,
           <EyeOff className="h-3 w-3" />
         </button>
       </div>
-      {hasConfig && configOpen && (isExt ? extConfig : isCandle ? candlePanel : isIntraday ? intradayPanel : strategiesConfig)}
+      {hasConfig && configOpen && (isExt ? extConfig() : isCandle ? candlePanel() : isIntraday ? intradayPanel() : strategiesConfig())}
     </>
   )
 }
@@ -149,6 +156,7 @@ export function ListColumnCustomizer({
   extFieldFilter,
   showExtColumns = true,
   showStandaloneToggle = false,
+  disableBackdropBlur = false,
 }: ListColumnCustomizerProps) {
   const extSchema = useQuery({
     queryKey: QK.extDataSchemaAll,
@@ -158,6 +166,13 @@ export function ListColumnCustomizer({
   })
   const backdrop = useDialogBackdrop(onClose)
 
+  // columns/onChange 用 ref 镜像，让下方 8 个 useCallback 空依赖，
+  // 避免 columns 每次变更都重建 callback 导致 SortableActiveCol 等 memo 失效。
+  const columnsRef = useRef(columns)
+  columnsRef.current = columns
+  const onChangeRef = useRef(onChange)
+  onChangeRef.current = onChange
+
   const [searchQuery, setSearchQuery] = useState('')
   const [expandedGroups, setExpandedGroups] = useState<Set<string>>(new Set())
   const [configOpenId, setConfigOpenId] = useState<string | null>(null)
@@ -175,16 +190,18 @@ export function ListColumnCustomizer({
   const activeCols = useMemo(() => columns.filter(c => !c.pinned && c.visible), [columns])
 
   const toggleVisible = useCallback((colId: string) => {
-    onChange(columns.map(c =>
+    const cols = columnsRef.current
+    onChangeRef.current(cols.map(c =>
       c.id === colId && !c.pinned ? { ...c, visible: !c.visible } : c
     ))
-  }, [columns, onChange])
+  }, [])
 
   const toggleStandalone = useCallback((colId: string) => {
-    onChange(columns.map(c =>
+    const cols = columnsRef.current
+    onChangeRef.current(cols.map(c =>
       c.id === colId ? { ...c, standalone: !c.standalone } : c
     ))
-  }, [columns, onChange])
+  }, [])
 
   const sensors = useSensors(
     useSensor(PointerSensor, { activationConstraint: { distance: 5 } }),
@@ -194,19 +211,21 @@ export function ListColumnCustomizer({
   const handleDragEnd = useCallback((event: DragEndEvent) => {
     const { active, over } = event
     if (!over || active.id === over.id) return
-    const reorderCols = columns.filter(c => !c.pinned)
-    const pinnedCols = columns.filter(c => c.pinned)
+    const cols = columnsRef.current
+    const reorderCols = cols.filter(c => !c.pinned)
+    const pinnedCols = cols.filter(c => c.pinned)
     const ids = reorderCols.map(c => c.id)
     const oldIdx = ids.indexOf(active.id as string)
     const newIdx = ids.indexOf(over.id as string)
     if (oldIdx < 0 || newIdx < 0) return
     const reordered = arrayMove(reorderCols, oldIdx, newIdx)
-    onChange([...pinnedCols, ...reordered])
-  }, [columns, onChange])
+    onChangeRef.current([...pinnedCols, ...reordered])
+  }, [])
 
   const addExtColumn = useCallback((configId: string, fieldName: string, fieldLabel?: string, fieldType?: string) => {
+    const cols = columnsRef.current
     const colId = `ext:${configId}:${fieldName}`
-    if (columns.some(c => c.id === colId)) {
+    if (cols.some(c => c.id === colId)) {
       toggleVisible(colId)
       return
     }
@@ -217,64 +236,71 @@ export function ListColumnCustomizer({
       visible: true,
       align: extColumnAlign,
     }
-    const actionIdx = columns.findIndex(c => c.id === 'builtin:action')
+    const actionIdx = cols.findIndex(c => c.id === 'builtin:action')
     if (actionIdx >= 0) {
-      const next = [...columns]
+      const next = [...cols]
       next.splice(actionIdx, 0, newCol)
-      onChange(next)
+      onChangeRef.current(next)
     } else {
-      onChange([...columns, newCol])
+      onChangeRef.current([...cols, newCol])
     }
-  }, [columns, extColumnAlign, onChange, toggleVisible])
+  }, [extColumnAlign, toggleVisible])
 
   const hideColumn = useCallback((colId: string) => {
-    onChange(columns.map(c => c.id === colId ? { ...c, visible: false } : c))
-  }, [columns, onChange])
+    const cols = columnsRef.current
+    onChangeRef.current(cols.map(c => c.id === colId ? { ...c, visible: false } : c))
+  }, [])
 
   const updateExtDisplay = useCallback((colId: string, patch: Partial<ExtColumnDisplayConfig>) => {
-    onChange(columns.map(c => {
+    const cols = columnsRef.current
+    onChangeRef.current(cols.map(c => {
       if (c.id !== colId) return c
       return { ...c, extDisplay: { displayMode: 'tag', ...(c.extDisplay || {}), ...patch } }
     }))
-  }, [columns, onChange])
+  }, [])
 
   const resetExtDisplay = useCallback((colId: string) => {
-    onChange(columns.map(c => {
+    const cols = columnsRef.current
+    onChangeRef.current(cols.map(c => {
       if (c.id !== colId) return c
       const { extDisplay, ...rest } = c
       return rest
     }))
-  }, [columns, onChange])
+  }, [])
 
   const updateCandleConfig = useCallback((colId: string, patch: Partial<CandleColumnConfig>) => {
-    onChange(columns.map(c => {
+    const cols = columnsRef.current
+    onChangeRef.current(cols.map(c => {
       if (c.id !== colId) return c
       return { ...c, candleConfig: { ...c.candleConfig, ...patch } }
     }))
-  }, [columns, onChange])
+  }, [])
 
   const resetCandleConfig = useCallback((colId: string) => {
-    onChange(columns.map(c => {
+    const cols = columnsRef.current
+    onChangeRef.current(cols.map(c => {
       if (c.id !== colId) return c
       const { candleConfig, ...rest } = c
       return rest
     }))
-  }, [columns, onChange])
+  }, [])
 
   const updateIntradayConfig = useCallback((colId: string, patch: Partial<IntradayColumnConfig>) => {
-    onChange(columns.map(c => {
+    const cols = columnsRef.current
+    onChangeRef.current(cols.map(c => {
       if (c.id !== colId) return c
       return { ...c, intradayConfig: { ...c.intradayConfig, ...patch } }
     }))
-  }, [columns, onChange])
+  }, [])
 
   const resetIntradayConfig = useCallback((colId: string) => {
-    onChange(columns.map(c => {
+    const cols = columnsRef.current
+    onChangeRef.current(cols.map(c => {
       if (c.id !== colId) return c
       const { intradayConfig, ...rest } = c
       return rest
     }))
-  }, [columns, onChange])
+  }, [])
 
   const toggleGroup = useCallback((groupId: string) => {
     setExpandedGroups(prev => {
@@ -295,7 +321,7 @@ export function ListColumnCustomizer({
   }, [])
 
   const extTables = extSchema.data?.items ?? []
-  const extTableLabelMap = new Map(extTables.map(t => [t.id, t.label]))
+  const extTableLabelMap = useMemo(() => new Map(extTables.map(t => [t.id, t.label])), [extTables])
 
   const query = searchQuery.trim().toLowerCase()
   const filteredGroups = useMemo(() => {
@@ -722,7 +748,7 @@ export function ListColumnCustomizer({
           <motion.div
             initial={{ opacity: 0 }} animate={{ opacity: 1 }} exit={{ opacity: 0 }}
             transition={{ duration: 0.15 }}
-            className="absolute inset-0 bg-black/50 backdrop-blur-sm"
+            className={`absolute inset-0 bg-black/50 ${disableBackdropBlur ? '' : 'backdrop-blur-sm'}`}
             {...backdrop}
           />
           <motion.div
@@ -768,10 +794,10 @@ export function ListColumnCustomizer({
                           onConfig={setConfigOpenId}
                           configOpen={configOpenId === col.id}
                           extTableLabel={col.source.type === 'ext' ? (extTableLabelMap.get(col.source.configId) || col.source.configId) : ''}
-                          extConfig={renderExtConfig(col)}
-                          candleConfig={renderCandleConfig(col)}
-                          intradayConfig={renderIntradayConfig(col)}
-                          strategiesConfig={renderStrategiesConfig(col)}
+                          extConfig={() => renderExtConfig(col)}
+                          candleConfig={() => renderCandleConfig(col)}
+                          intradayConfig={() => renderIntradayConfig(col)}
+                          strategiesConfig={() => renderStrategiesConfig(col)}
                           showStandaloneToggle={showStandaloneToggle}
                           onToggleStandalone={toggleStandalone}
                         />
diff --git a/frontend/src/components/StockInfoBar.tsx b/frontend/src/components/StockInfoBar.tsx
index 1063249..a5f643f 100644
--- a/frontend/src/components/StockInfoBar.tsx
+++ b/frontend/src/components/StockInfoBar.tsx
@@ -272,6 +272,7 @@ export function StockInfoBar({ symbol, name, stockInfo, rows, fields, onFieldsCh
         builtinSectionLabel="可选指标"
         extColumnAlign="left"
         showStandaloneToggle
+        disableBackdropBlur
       />
     </div>
   )