diff --git a/app/src/main/java/com/topjohnwu/magisk/ui/surequest/SuRequestViewModel.kt b/app/src/main/java/com/topjohnwu/magisk/ui/surequest/SuRequestViewModel.kt
index 322dfcb31..bbcef4e96 100644
--- a/app/src/main/java/com/topjohnwu/magisk/ui/surequest/SuRequestViewModel.kt
+++ b/app/src/main/java/com/topjohnwu/magisk/ui/surequest/SuRequestViewModel.kt
@@ -34,6 +34,7 @@ import com.topjohnwu.magisk.events.BiometricEvent
 import com.topjohnwu.magisk.events.DieEvent
 import com.topjohnwu.magisk.events.ShowUIEvent
 import com.topjohnwu.magisk.utils.TextHolder
+import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.launch
 import java.util.concurrent.TimeUnit.SECONDS
 
@@ -71,7 +72,8 @@ class SuRequestViewModel(
     }
 
     private val handler = SuRequestHandler(AppContext.packageManager, policyDB)
-    private lateinit var timer: CountDownTimer
+    private val millis = SECONDS.toMillis(Config.suDefaultTimeout.toLong())
+    private var timer = SuTimer(millis, 1000)
     private var initialized = false
 
     fun grantPressed() {
@@ -97,7 +99,7 @@ class SuRequestViewModel(
     }
 
     fun handleRequest(intent: Intent) {
-        viewModelScope.launch {
+        viewModelScope.launch(Dispatchers.Default) {
             if (handler.start(intent))
                 showDialog()
             else
@@ -126,8 +128,7 @@ class SuRequestViewModel(
         selectedItemPosition = timeoutPrefs.getInt(packageName, 0)
 
         // Set timer
-        val millis = SECONDS.toMillis(Config.suDefaultTimeout.toLong())
-        timer = SuTimer(millis, 1000).apply { start() }
+        timer.start()
 
         // Actually show the UI
         ShowUIEvent(if (Config.suTapjack) EmptyAccessibilityDelegate else null).publish()