diff --git a/services/core/java/com/android/server/pm/InstallPackageHelper.java b/services/core/java/com/android/server/pm/InstallPackageHelper.java
index 8bd1da9fbe9b2..2d8d4f5881925 100644
--- a/services/core/java/com/android/server/pm/InstallPackageHelper.java
+++ b/services/core/java/com/android/server/pm/InstallPackageHelper.java
@@ -2545,7 +2545,6 @@ final class InstallPackageHelper {
         ArrayList<String>[] components;
         int size = 0;
         int[] uids;
-        Process.setThreadPriority(Process.THREAD_PRIORITY_DEFAULT);
 
         synchronized (mPm.mLock) {
             final SparseArray<ArrayMap<String, ArrayList<String>>> userIdToPackagesToComponents =
@@ -2584,7 +2583,6 @@ final class InstallPackageHelper {
             mPm.sendPackageChangedBroadcast(snapshot, packages[i], true /* dontKillApp */,
                     components[i], uids[i], null /* reason */);
         }
-        Process.setThreadPriority(Process.THREAD_PRIORITY_BACKGROUND);
     }
 
     void handlePackagePostInstall(PackageInstalledInfo res, InstallArgs installArgs,
diff --git a/services/core/java/com/android/server/pm/PackageHandler.java b/services/core/java/com/android/server/pm/PackageHandler.java
index e8faca9765f85..0dfa31c5f1fc3 100644
--- a/services/core/java/com/android/server/pm/PackageHandler.java
+++ b/services/core/java/com/android/server/pm/PackageHandler.java
@@ -75,7 +75,7 @@ final class PackageHandler extends Handler {
         try {
             doHandleMessage(msg);
         } finally {
-            Process.setThreadPriority(Process.THREAD_PRIORITY_BACKGROUND);
+            Process.setThreadPriority(Process.THREAD_PRIORITY_DEFAULT);
         }
     }
 
@@ -136,19 +136,13 @@ final class PackageHandler extends Handler {
                 }
             } break;
             case WRITE_SETTINGS: {
-                Process.setThreadPriority(Process.THREAD_PRIORITY_DEFAULT);
                 mPm.writeSettings();
-                Process.setThreadPriority(Process.THREAD_PRIORITY_BACKGROUND);
             } break;
             case WRITE_PACKAGE_RESTRICTIONS: {
-                Process.setThreadPriority(Process.THREAD_PRIORITY_DEFAULT);
                 mPm.writePendingRestrictions();
-                Process.setThreadPriority(Process.THREAD_PRIORITY_BACKGROUND);
             } break;
             case WRITE_PACKAGE_LIST: {
-                Process.setThreadPriority(Process.THREAD_PRIORITY_DEFAULT);
                 mPm.writePackageList(msg.arg1);
-                Process.setThreadPriority(Process.THREAD_PRIORITY_BACKGROUND);
             } break;
             case CHECK_PENDING_VERIFICATION: {
                 final int verificationId = msg.arg1;
diff --git a/services/core/java/com/android/server/pm/PackageManagerService.java b/services/core/java/com/android/server/pm/PackageManagerService.java
index 88564aa2e935a..2cef35fcf0f60 100644
--- a/services/core/java/com/android/server/pm/PackageManagerService.java
+++ b/services/core/java/com/android/server/pm/PackageManagerService.java
@@ -1413,7 +1413,9 @@ public class PackageManagerService implements PackageSender, TestUtilityService
         t.traceBegin("create package manager");
         final PackageManagerTracedLock lock = new PackageManagerTracedLock();
         final Object installLock = new Object();
-        HandlerThread backgroundThread = new HandlerThread("PackageManagerBg");
+
+        HandlerThread backgroundThread = new ServiceThread("PackageManagerBg",
+                Process.THREAD_PRIORITY_BACKGROUND, true /*allowIo*/);
         backgroundThread.start();
         Handler backgroundHandler = new Handler(backgroundThread.getLooper());
 
@@ -1467,7 +1469,7 @@ public class PackageManagerService implements PackageSender, TestUtilityService
                 (i, pm) -> domainVerificationService,
                 (i, pm) -> {
                     HandlerThread thread = new ServiceThread(TAG,
-                            Process.THREAD_PRIORITY_BACKGROUND, true /*allowIo*/);
+                            Process.THREAD_PRIORITY_DEFAULT, true /*allowIo*/);
                     thread.start();
                     return new PackageHandler(thread.getLooper(), pm);
                 },