diff --git a/V2rayNG/app/src/main/java/com/v2ray/ang/service/V2RayTestService.kt b/V2rayNG/app/src/main/java/com/v2ray/ang/service/V2RayTestService.kt
index 5c13514a..5d7a5169 100644
--- a/V2rayNG/app/src/main/java/com/v2ray/ang/service/V2RayTestService.kt
+++ b/V2rayNG/app/src/main/java/com/v2ray/ang/service/V2RayTestService.kt
@@ -7,9 +7,7 @@ import com.v2ray.ang.AppConfig
 import com.v2ray.ang.AppConfig.MSG_MEASURE_CONFIG
 import com.v2ray.ang.AppConfig.MSG_MEASURE_CONFIG_CANCEL
 import com.v2ray.ang.AppConfig.MSG_MEASURE_CONFIG_SUCCESS
-import com.v2ray.ang.dto.EConfigType
 import com.v2ray.ang.extension.serializable
-import com.v2ray.ang.handler.MmkvManager
 import com.v2ray.ang.handler.SettingsManager
 import com.v2ray.ang.handler.V2RayNativeManager
 import com.v2ray.ang.handler.V2rayConfigManager
@@ -17,18 +15,18 @@ import com.v2ray.ang.util.MessageUtil
 import kotlinx.coroutines.CancellationException
 import kotlinx.coroutines.CoroutineName
 import kotlinx.coroutines.CoroutineScope
-import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.SupervisorJob
+import kotlinx.coroutines.asCoroutineDispatcher
 import kotlinx.coroutines.cancelChildren
 import kotlinx.coroutines.joinAll
 import kotlinx.coroutines.launch
+import java.util.concurrent.Executors
 import java.util.concurrent.atomic.AtomicInteger
 
 class V2RayTestService : Service() {
     private val realTestJob = SupervisorJob()
-    private val realDispatcher = Dispatchers.IO.limitedParallelism(
-        Runtime.getRuntime().availableProcessors() * 3
-    )
+    private val cpu = Runtime.getRuntime().availableProcessors().coerceAtLeast(1)
+    private val realDispatcher = Executors.newFixedThreadPool((cpu * 2)).asCoroutineDispatcher()
     private val realTestScope = CoroutineScope(
         realTestJob + realDispatcher + CoroutineName("RealTest")
     )
@@ -60,6 +58,7 @@ class V2RayTestService : Service() {
     override fun onDestroy() {
         super.onDestroy()
         realTestJob.cancel()
+        realDispatcher.close()
     }
 
     /**