diff --git a/ADP/ViewModels/ShellViewModel.cs b/ADP/ViewModels/ShellViewModel.cs
index 86e9243..a09cd54 100644
--- a/ADP/ViewModels/ShellViewModel.cs
+++ b/ADP/ViewModels/ShellViewModel.cs
@@ -50,13 +50,11 @@ namespace ADP.ViewModels
             set => SetProperty(ref _IsLeftDrawerOpen, value);
         }
 
-        // 代理属性：动态反映当前被激活的 Scope 状态
         public TimeSpan RunningTime
         {
             get
             {
                 if (CurrentContext == null) return TimeSpan.Zero;
-                // 💡 核心：如果当前工位的计时器正在跑，动态累加 SW 当前的时间，否则返回其保存的固定时间值
                 return CurrentContext.SW.IsRunning ? CurrentContext.SW.Elapsed : CurrentContext.RunningTime;
             }
             set
diff --git a/SettingModule/Views/SettingView.xaml b/SettingModule/Views/SettingView.xaml
index 9da1d2b..aa99955 100644
--- a/SettingModule/Views/SettingView.xaml
+++ b/SettingModule/Views/SettingView.xaml
@@ -448,7 +448,7 @@
                                                         <ColumnDefinition Width="Auto"/>
                                                     </Grid.ColumnDefinitions>
                                                     <Slider Grid.Column="0"
-                                                            Minimum="0" Maximum="100"
+                                                            Minimum="100" Maximum="200"
                                                             TickFrequency="10" IsSnapToTickEnabled="True"
                                                             VerticalAlignment="Center"
                                                             Value="{Binding SystemConfig.PerformanceLevel}"/>
diff --git a/TestingModule/Views/StepsManager.xaml b/TestingModule/Views/StepsManager.xaml
index b8a68b6..e041dbc 100644
--- a/TestingModule/Views/StepsManager.xaml
+++ b/TestingModule/Views/StepsManager.xaml
@@ -22,6 +22,9 @@
                     <DataGrid dd:DragDrop.IsDragSource="{Binding Admin}"
                               dd:DragDrop.IsDropTarget="{Binding Admin}"
                               dd:DragDrop.UseDefaultDragAdorner="{Binding Admin}"
+                              VirtualizingStackPanel.IsVirtualizing="True"
+                              VirtualizingStackPanel.VirtualizationMode="Recycling"
+                              VirtualizingStackPanel.ScrollUnit="Pixel"
                               AutoGenerateColumns="False"
                               Background="Transparent"
                               CanUserAddRows="False"
diff --git a/UIShare/GlobalVariable/StepRunning.cs b/UIShare/GlobalVariable/StepRunning.cs
index a668922..54f3c3d 100644
--- a/UIShare/GlobalVariable/StepRunning.cs
+++ b/UIShare/GlobalVariable/StepRunning.cs
@@ -18,7 +18,7 @@ using static UIShare.UIViewModel.ParameterVM;
 
 namespace UIShare
 {
-    public class StepRunning
+    public class StepRunning:IDisposable
     {
         private ScopedContext _scopedContext;
         private SystemConfig _systemConfig;
@@ -39,6 +39,9 @@ namespace UIShare
         public  CancellationTokenSource errorStepCTS = new();
         private  bool SubSingleStep = false;
 
+        /// <summary>标记是否已被注销，执行方法据此安全退出</summary>
+        private volatile bool _disposed = false;
+
         private  Guid TestRoundID;
         public StepRunning(ScopedContext ScopedContext, SystemConfig systemConfig,IEventAggregator eventAggregator, DeviceManager deviceManager)
         {
@@ -50,6 +53,7 @@ namespace UIShare
         }
         public async Task<bool> ExecuteErrorSteps(ProgramVM program, int depth = 0, CancellationToken cancellationToken = default)
         {
+            if (_disposed) return false;
             int index = 0;
             bool stepSuccess = false;
             if (depth == 0)
@@ -67,7 +71,7 @@ namespace UIShare
 
             while (index < program.ErrorStepCollection.Count)
             {
-                if (cancellationToken.IsCancellationRequested)
+                if (_disposed || cancellationToken.IsCancellationRequested)
                 {
                     break;
                 }
@@ -215,6 +219,7 @@ namespace UIShare
         }
         public  async Task<bool> ExecuteSteps(ProgramVM program, int depth = 0, CancellationToken cancellationToken = default)
         {
+            if (_disposed) return false;
             int index = 0;
             bool stepSuccess = false;
             if (depth == 0)
@@ -232,11 +237,11 @@ namespace UIShare
 
             while (index < program.StepCollection.Count)
             {
-                while (_scopedContext.IsStop == true)
+                while (!_disposed && _scopedContext.IsStop == true)
                 {
-                    await Task.Delay(50);
+                    await Task.Delay(50, cancellationToken);
                 }
-                if (cancellationToken.IsCancellationRequested)
+                if (_disposed || cancellationToken.IsCancellationRequested)
                 {
                     break;
                 }
@@ -392,11 +397,12 @@ namespace UIShare
 
         public  async Task ExecuteMethodStep(StepVM step, Dictionary<Guid, ParameterVM> parameters, int depth, CancellationToken cancellationToken = default)
         {
+            if (_disposed) return;
             try
             {
                 if(_scopedContext.Program.StepCollection.Count>1)
                 _scopedContext.SelectedStep = null;
-                await Task.Delay(_systemConfig.PerformanceLevel);
+                await Task.Delay(_systemConfig.PerformanceLevel, cancellationToken);
               
 
                 // 1. 查找类型
@@ -711,7 +717,41 @@ namespace UIShare
             }
         }
 
-       
+        public void Dispose()
+        {
+            if (_disposed) return;
+            _disposed = true;
+
+            // 1. 唤醒暂停循环（IsStop 可能卡住后台线程）
+            try
+            {
+                if (_scopedContext != null)
+                {
+                    _scopedContext.IsStop = false;
+                    _scopedContext.IsTerminate = true;
+                    _scopedContext.RunState = "运行";
+                }
+            }
+            catch { }
+            try
+            {
+                if (stepCTS != null && !stepCTS.IsCancellationRequested) stepCTS.Cancel();
+            }
+            catch (ObjectDisposedException) { }
+
+            try
+            {
+                if (errorStepCTS != null && !errorStepCTS.IsCancellationRequested) errorStepCTS.Cancel();
+            }
+            catch (ObjectDisposedException) { }
+
+            tmpParameters.Clear();
+            loopStack.Clear();
+            loopStopwatchStack.Clear();
+            stepStopwatch.Stop();
+        }
+
+
 
         #region 私有类