diff --git a/src/base/models/QvSettingsObject.hpp b/src/base/models/QvSettingsObject.hpp
index ce0af572..0a66b52f 100644
--- a/src/base/models/QvSettingsObject.hpp
+++ b/src/base/models/QvSettingsObject.hpp
@@ -118,7 +118,8 @@ namespace Qv2ray::base::config
         bool setSessionResumption = false;
         bool testLatencyPeriodcally = false;
         bool disableSystemRoot = false;
-        JSONSTRUCT_REGISTER(Qv2rayConfig_Advanced, F(setAllowInsecure, setSessionResumption, testLatencyPeriodcally, disableSystemRoot))
+        bool testLatencyOnConnected = false;
+        JSONSTRUCT_REGISTER(Qv2rayConfig_Advanced, F(setAllowInsecure, setSessionResumption, testLatencyPeriodcally, disableSystemRoot, testLatencyOnConnected))
     };
 
     enum Qv2rayLatencyTestingMethod
diff --git a/src/ui/widgets/windows/w_MainWindow.cpp b/src/ui/widgets/windows/w_MainWindow.cpp
index 57eec460..d9617fe2 100644
--- a/src/ui/widgets/windows/w_MainWindow.cpp
+++ b/src/ui/widgets/windows/w_MainWindow.cpp
@@ -657,7 +657,10 @@ void MainWindow::OnConnected(const ConnectionGroupPair &id)
     //
     QTimer::singleShot(1000, ConnectionManager, [id]() {
         // After the kernel initialization is complete, we can test the delay without worry
-        ConnectionManager->StartLatencyTest(id.connectionId);
+        if (GlobalConfig.advancedConfig.testLatencyOnConnected)
+        {
+            ConnectionManager->StartLatencyTest(id.connectionId);
+        }
     });
     if (GlobalConfig.inboundConfig.systemProxySettings.setSystemProxy)
     {
diff --git a/src/ui/widgets/windows/w_PreferencesWindow.cpp b/src/ui/widgets/windows/w_PreferencesWindow.cpp
index 1a46c385..9f0cf111 100644
--- a/src/ui/widgets/windows/w_PreferencesWindow.cpp
+++ b/src/ui/widgets/windows/w_PreferencesWindow.cpp
@@ -194,6 +194,7 @@ PreferencesWindow::PreferencesWindow(QWidget *parent) : QvDialog("PreferenceWind
         setAllowInsecureCB->setChecked(CurrentConfig.advancedConfig.setAllowInsecure);
         setSessionResumptionCB->setChecked(CurrentConfig.advancedConfig.setSessionResumption);
         setTestLatenctCB->setChecked(CurrentConfig.advancedConfig.testLatencyPeriodcally);
+        setTestLatenctOnConnectedCB->setChecked(CurrentConfig.advancedConfig.testLatencyOnConnected);
         disableSystemRootCB->setChecked(CurrentConfig.advancedConfig.disableSystemRoot);
     }
     //
@@ -854,6 +855,16 @@ void PreferencesWindow::on_setTestLatenctCB_stateChanged(int arg1)
     CurrentConfig.advancedConfig.testLatencyPeriodcally = arg1 == Qt::Checked;
 }
 
+void PreferencesWindow::on_setTestLatenctOnConnectedCB_stateChanged(int arg1)
+{
+    LOADINGCHECK
+    if (arg1 == Qt::Checked)
+    {
+        QvMessageBoxWarn(this, tr("Dangerous Operation"), tr("This will (probably) make it easy to fingerprint your connection."));
+    }
+    CurrentConfig.advancedConfig.testLatencyOnConnected = arg1 == Qt::Checked;
+}
+
 void PreferencesWindow::on_setSessionResumptionCB_stateChanged(int arg1)
 {
     LOADINGCHECK
diff --git a/src/ui/widgets/windows/w_PreferencesWindow.hpp b/src/ui/widgets/windows/w_PreferencesWindow.hpp
index ea9c7ae8..867c20b8 100644
--- a/src/ui/widgets/windows/w_PreferencesWindow.hpp
+++ b/src/ui/widgets/windows/w_PreferencesWindow.hpp
@@ -96,6 +96,7 @@ class PreferencesWindow
     void on_qvProxyPortCB_valueChanged(int arg1);
     void on_setAllowInsecureCB_stateChanged(int arg1);
     void on_setTestLatenctCB_stateChanged(int arg1);
+    void on_setTestLatenctOnConnectedCB_stateChanged(int arg1);
     void on_setSessionResumptionCB_stateChanged(int arg1);
     void on_quietModeCB_stateChanged(int arg1);
     void on_tproxGroupBox_toggled(bool arg1);
diff --git a/src/ui/widgets/windows/w_PreferencesWindow.ui b/src/ui/widgets/windows/w_PreferencesWindow.ui
index f7b1e502..bb44fa32 100644
--- a/src/ui/widgets/windows/w_PreferencesWindow.ui
+++ b/src/ui/widgets/windows/w_PreferencesWindow.ui
@@ -647,6 +647,20 @@ But could damage your server if improperly used.</string>
               </property>
              </widget>
             </item>
+            <item row="5" column="0">
+             <widget class="QLabel" name="label_44">
+              <property name="text">
+               <string>Test Latency On Connected</string>
+              </property>
+             </widget>
+            </item>
+            <item row="5" column="1">
+             <widget class="QCheckBox" name="setTestLatenctOnConnectedCB">
+              <property name="text">
+               <string>Enabled</string>
+              </property>
+             </widget>
+            </item>
            </layout>
           </widget>
          </item>
diff --git a/translations/en_US.ts b/translations/en_US.ts
index 05d23a8d..3517a070 100644
--- a/translations/en_US.ts
+++ b/translations/en_US.ts
@@ -1335,6 +1335,10 @@ This could resolve the certificate issues, but also could let one performing TLS
         <source>Test Latency Periodcally</source>
         <translation type="unfinished"></translation>
     </message>
+    <message>
+        <source>Test Latency On Connected</source>
+        <translation type="unfinished"></translation>
+    </message>
     <message>
         <source>Run TCPing or ICMPing periodcally after connecting to a server.
 Qv2ray will give a more accurate latency value if Enabled, but makes it easy to fingerprint the connection.</source>
diff --git a/translations/zh_CN.ts b/translations/zh_CN.ts
index 3298db6c..2577d149 100644
--- a/translations/zh_CN.ts
+++ b/translations/zh_CN.ts
@@ -1342,6 +1342,10 @@ This could resolve the certificate issues, but also could let one performing TLS
       <source>Test Latency Periodcally</source>
       <translation>定时测试延迟</translation>
     </message>
+    <message>
+      <source>Test Latency On Connected</source>
+      <translation>连接后测试延迟</translation>
+    </message>
     <message>
       <source>Run TCPing or ICMPing periodcally after connecting to a server.
 Qv2ray will give a more accurate latency value if Enabled, but makes it easy to fingerprint the connection.</source>