diff --git a/src/MaaWpfGui/Helper/WebService.cs b/src/MaaWpfGui/Helper/WebService.cs
index e441e51c24..19f182c1b9 100644
--- a/src/MaaWpfGui/Helper/WebService.cs
+++ b/src/MaaWpfGui/Helper/WebService.cs
@@ -27,6 +27,8 @@ namespace MaaWpfGui.Helper
     {
         public const string RequestUserAgent = "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/97.0.4692.99 Safari/537.36 Edg/97.0.1072.76";
 
+        private const int TimeoutMs = 3000;
+
         private static string s_proxy = Config.Get(Config.UpdateProxy, string.Empty);
 
         public static string Proxy
@@ -35,12 +37,18 @@ namespace MaaWpfGui.Helper
             {
                 s_proxy = value;
                 NormalClient = BuildNormalClient();
+                NormalClient.Timeout = TimeSpan.FromMilliseconds(TimeoutMs);
             }
         }
 
 #nullable enable
         public static HttpClient NormalClient { get; private set; } = BuildNormalClient();
 
+        static WebService()
+        {
+            NormalClient.Timeout = TimeSpan.FromMilliseconds(TimeoutMs);
+        }
+
         private static HttpClient BuildNormalClient() => new HttpClient(new HttpClientHandler()
         {
             Proxy = string.IsNullOrWhiteSpace(s_proxy) ? null : new WebProxy(s_proxy),
diff --git a/src/MaaWpfGui/Main/CopilotViewModel.cs b/src/MaaWpfGui/Main/CopilotViewModel.cs
index 5206af8f01..54d89c8ac7 100644
--- a/src/MaaWpfGui/Main/CopilotViewModel.cs
+++ b/src/MaaWpfGui/Main/CopilotViewModel.cs
@@ -148,13 +148,7 @@ namespace MaaWpfGui
             get => _filename;
             set
             {
-                if (value == _filename)
-                {
-                    return;
-                }
-
-                _filename = value;
-                NotifyOfPropertyChange(() => Filename);
+                SetAndNotify(ref _filename, value);
                 ClearLog();
                 UpdateFilename();
             }
@@ -224,7 +218,6 @@ namespace MaaWpfGui
             {
                 ParseJsonAndShowInfo(jsonStr);
             }
-
         }
 
         private async Task<string> RequestCopilotServer(int copilotID)