diff --git a/v2rayN/v2rayN/Base/DownloaderHelper.cs b/v2rayN/v2rayN/Base/DownloaderHelper.cs
index c7357506..f6969938 100644
--- a/v2rayN/v2rayN/Base/DownloaderHelper.cs
+++ b/v2rayN/v2rayN/Base/DownloaderHelper.cs
@@ -117,7 +117,7 @@ namespace v2rayN.Base
             };
             progress.Report("......");
 
-            await downloader.DownloadFileTaskAsync(address: url, cancellationToken: cancellationToken.Token);
+            using var stream = await downloader.DownloadFileTaskAsync(address: url, cancellationToken: cancellationToken.Token);
 
             downloadOpt = null;
         }
diff --git a/v2rayN/v2rayN/Handler/ProfileExHandler.cs b/v2rayN/v2rayN/Handler/ProfileExHandler.cs
index 9d19502e..b230b330 100644
--- a/v2rayN/v2rayN/Handler/ProfileExHandler.cs
+++ b/v2rayN/v2rayN/Handler/ProfileExHandler.cs
@@ -1,4 +1,6 @@
-using v2rayN.Base;
+using System.Collections.Concurrent;
+using System.Reactive.Linq;
+using v2rayN.Base;
 using v2rayN.Mode;
 
 namespace v2rayN.Handler
@@ -6,8 +8,9 @@ namespace v2rayN.Handler
     class ProfileExHandler
     {
         private static readonly Lazy<ProfileExHandler> _instance = new(() => new());
-        private List<ProfileExItem> _lstProfileEx;
-        public List<ProfileExItem> ProfileExs => _lstProfileEx;
+        private ConcurrentBag<ProfileExItem> _lstProfileEx;
+        private Queue<string> _queIndexIds = new();
+        public ConcurrentBag<ProfileExItem> ProfileExs => _lstProfileEx;
         public static ProfileExHandler Instance => _instance.Value;
 
         public ProfileExHandler()
@@ -19,7 +22,33 @@ namespace v2rayN.Handler
         {
             SqliteHelper.Instance.Execute($"delete from ProfileExItem where indexId not in ( select indexId from ProfileItem )");
 
-            _lstProfileEx = SqliteHelper.Instance.Table<ProfileExItem>().ToList();
+            _lstProfileEx = new(SqliteHelper.Instance.Table<ProfileExItem>());
+
+            Task.Run(async () =>
+            {
+                while (true)
+                {
+                    var cnt = _queIndexIds.Count;
+                    for (int i = 0; i < cnt; i++)
+                    {
+                        var id = _queIndexIds.Dequeue();
+                        var item = _lstProfileEx.FirstOrDefault(t => t.indexId == id);
+                        if (item is not null)
+                        {
+                            await SqliteHelper.Instance.Replacesync(item);
+                        }
+                    }
+                    Thread.Sleep(1000 * 60);
+                }
+            });
+        }
+
+        private void IndexIdEnqueue(string indexId)
+        {
+            if (!Utils.IsNullOrEmpty(indexId) && !_queIndexIds.Contains(indexId))
+            {
+                _queIndexIds.Enqueue(indexId);
+            }
         }
 
         private void AddProfileEx(string indexId, ref ProfileExItem profileEx)
@@ -32,7 +61,7 @@ namespace v2rayN.Handler
                 sort = 0
             };
             _lstProfileEx.Add(profileEx);
-            //SqliteHelper.Instance.Replace(profileEx);
+            IndexIdEnqueue(indexId);
         }
 
         public void ClearAll()
@@ -45,11 +74,11 @@ namespace v2rayN.Handler
         {
             try
             {
-                foreach (var item in _lstProfileEx)
-                {
-                    SqliteHelper.Instance.Replace(item);
-                }
-                //SqliteHelper.Instance.UpdateAll(_lstProfileEx);
+                //foreach (var item in _lstProfileEx)
+                //{
+                //    SqliteHelper.Instance.Replace(item);
+                //}
+                SqliteHelper.Instance.UpdateAll(_lstProfileEx);
             }
             catch (Exception ex)
             {
@@ -57,7 +86,7 @@ namespace v2rayN.Handler
             }
         }
 
-        public Task SetTestDelay(string indexId, string delayVal)
+        public void SetTestDelay(string indexId, string delayVal)
         {
             var profileEx = _lstProfileEx.FirstOrDefault(t => t.indexId == indexId);
             if (profileEx == null)
@@ -67,10 +96,10 @@ namespace v2rayN.Handler
 
             int.TryParse(delayVal, out int delay);
             profileEx.delay = delay;
-            return Task.CompletedTask;
+            IndexIdEnqueue(indexId);
         }
 
-        public Task SetTestSpeed(string indexId, string speedVal)
+        public void SetTestSpeed(string indexId, string speedVal)
         {
             var profileEx = _lstProfileEx.FirstOrDefault(t => t.indexId == indexId);
             if (profileEx == null)
@@ -80,7 +109,7 @@ namespace v2rayN.Handler
 
             decimal.TryParse(speedVal, out decimal speed);
             profileEx.speed = speed;
-            return Task.CompletedTask;
+            IndexIdEnqueue(indexId);
         }
 
         public void SetSort(string indexId, int sort)
@@ -91,6 +120,7 @@ namespace v2rayN.Handler
                 AddProfileEx(indexId, ref profileEx);
             }
             profileEx.sort = sort;
+            IndexIdEnqueue(indexId);
         }
 
         public int GetSort(string indexId)
diff --git a/v2rayN/v2rayN/Handler/SpeedtestHandler.cs b/v2rayN/v2rayN/Handler/SpeedtestHandler.cs
index fd782f9a..cc2b3fdd 100644
--- a/v2rayN/v2rayN/Handler/SpeedtestHandler.cs
+++ b/v2rayN/v2rayN/Handler/SpeedtestHandler.cs
@@ -55,12 +55,16 @@ namespace v2rayN.Handler
                     case ESpeedActionType.Tcping:
                     case ESpeedActionType.Realping:
                         UpdateFunc(it.indexId, ResUI.Speedtesting, "");
+                        ProfileExHandler.Instance.SetTestDelay(it.indexId, "0");
                         break;
                     case ESpeedActionType.Speedtest:
-                        UpdateFunc(it.indexId, "", ResUI.Speedtesting);
+                        UpdateFunc(it.indexId, "", ResUI.Speedtesting); 
+                        ProfileExHandler.Instance.SetTestSpeed(it.indexId, "0");
                         break;
                     case ESpeedActionType.Mixedtest:
                         UpdateFunc(it.indexId, ResUI.Speedtesting, ResUI.Speedtesting);
+                        ProfileExHandler.Instance.SetTestDelay(it.indexId, "0");
+                        ProfileExHandler.Instance.SetTestSpeed(it.indexId, "0");
                         break;
                 }
             }
@@ -112,24 +116,24 @@ namespace v2rayN.Handler
 
         private void RunPing()
         {
-            RunPingSub(async (ServerTestItem it) =>
+            RunPingSub((ServerTestItem it) =>
             {
                 long time = Ping(it.address);
                 var output = FormatOut(time, Global.DelayUnit);
 
-                await ProfileExHandler.Instance.SetTestDelay(it.indexId, output);
+                ProfileExHandler.Instance.SetTestDelay(it.indexId, output);
                 UpdateFunc(it.indexId, output);
             });
         }
 
         private void RunTcping()
         {
-            RunPingSub(async (ServerTestItem it) =>
+            RunPingSub((ServerTestItem it) =>
             {
                 int time = GetTcpingTime(it.address, it.port);
                 var output = FormatOut(time, Global.DelayUnit);
 
-                await ProfileExHandler.Instance.SetTestDelay(it.indexId, output);
+                ProfileExHandler.Instance.SetTestDelay(it.indexId, output);
                 UpdateFunc(it.indexId, output);
             });
         }
@@ -161,7 +165,7 @@ namespace v2rayN.Handler
                     {
                         continue;
                     }
-                    tasks.Add(Task.Run(async () =>
+                    tasks.Add(Task.Run(() =>
                     {
                         try
                         {
@@ -169,7 +173,7 @@ namespace v2rayN.Handler
                             WebProxy webProxy = new(Global.Loopback, it.port);
                             string output = GetRealPingTime(downloadHandle, webProxy);
 
-                            await ProfileExHandler.Instance.SetTestDelay(it.indexId, output);
+                            ProfileExHandler.Instance.SetTestDelay(it.indexId, output);
                             UpdateFunc(it.indexId, output);
                             int.TryParse(output, out int delay);
                             it.delay = delay;
@@ -231,7 +235,7 @@ namespace v2rayN.Handler
                 //    UpdateFunc(it.indexId, "", ResUI.SpeedtestingSkip);
                 //    continue;
                 //}
-                await ProfileExHandler.Instance.SetTestSpeed(it.indexId, "-1");
+                ProfileExHandler.Instance.SetTestSpeed(it.indexId, "-1");
 
                 var item = LazyConfig.Instance.GetProfileItem(it.indexId);
                 if (item is null) continue;
@@ -243,7 +247,7 @@ namespace v2rayN.Handler
                     decimal.TryParse(msg, out decimal dec);
                     if (dec > 0)
                     {
-                        await ProfileExHandler.Instance.SetTestSpeed(it.indexId, msg);
+                        ProfileExHandler.Instance.SetTestSpeed(it.indexId, msg);
                     }
                     UpdateFunc(it.indexId, "", msg);
                 });
@@ -282,7 +286,7 @@ namespace v2rayN.Handler
                 {
                     continue;
                 }
-                await ProfileExHandler.Instance.SetTestSpeed(it.indexId, "-1");
+                ProfileExHandler.Instance.SetTestSpeed(it.indexId, "-1");
 
                 var item = LazyConfig.Instance.GetProfileItem(it.indexId);
                 if (item is null) continue;
@@ -293,7 +297,7 @@ namespace v2rayN.Handler
                     decimal.TryParse(msg, out decimal dec);
                     if (dec > 0)
                     {
-                        await ProfileExHandler.Instance.SetTestSpeed(it.indexId, msg);
+                        ProfileExHandler.Instance.SetTestSpeed(it.indexId, msg);
                     }
                     UpdateFunc(it.indexId, "", msg);
                 });