diff --git a/packages/SystemUI/aconfig/systemui.aconfig b/packages/SystemUI/aconfig/systemui.aconfig
index 6f34f05..673a499 100644
--- a/packages/SystemUI/aconfig/systemui.aconfig
+++ b/packages/SystemUI/aconfig/systemui.aconfig
@@ -431,6 +431,16 @@
 }
 
 flag {
+    name: "slice_manager_binder_call_background"
+    namespace: "systemui"
+    description: "Move the ISliceManager#getPinnedSpecs binder call to the background thread."
+    bug: "322745650"
+    metadata {
+        purpose: PURPOSE_BUGFIX
+    }
+}
+
+flag {
    name: "register_new_wallet_card_in_background"
    namespace: "systemui"
    description: "Decide whether the call to registerNewWalletCards method should be issued on background thread."
diff --git a/packages/SystemUI/src/com/android/keyguard/KeyguardSliceViewController.java b/packages/SystemUI/src/com/android/keyguard/KeyguardSliceViewController.java
index a9928d8..63088aa 100644
--- a/packages/SystemUI/src/com/android/keyguard/KeyguardSliceViewController.java
+++ b/packages/SystemUI/src/com/android/keyguard/KeyguardSliceViewController.java
@@ -20,6 +20,7 @@
 
 import android.app.PendingIntent;
 import android.net.Uri;
+import android.os.Handler;
 import android.os.Trace;
 import android.provider.Settings;
 import android.util.Log;
@@ -39,6 +40,9 @@
 
 import com.android.keyguard.dagger.KeyguardStatusViewScope;
 import com.android.systemui.Dumpable;
+import com.android.systemui.Flags;
+import com.android.systemui.dagger.qualifiers.Background;
+import com.android.systemui.dagger.qualifiers.Main;
 import com.android.systemui.dump.DumpManager;
 import com.android.systemui.keyguard.KeyguardSliceProvider;
 import com.android.systemui.plugins.ActivityStarter;
@@ -60,6 +64,8 @@
         Dumpable {
     private static final String TAG = "KeyguardSliceViewCtrl";
 
+    private final Handler mHandler;
+    private final Handler mBgHandler;
     private final ActivityStarter mActivityStarter;
     private final ConfigurationController mConfigurationController;
     private final TunerService mTunerService;
@@ -105,6 +111,8 @@
 
     @Inject
     public KeyguardSliceViewController(
+            @Main Handler handler,
+            @Background Handler bgHandler,
             KeyguardSliceView keyguardSliceView,
             ActivityStarter activityStarter,
             ConfigurationController configurationController,
@@ -112,6 +120,8 @@
             DumpManager dumpManager,
             DisplayTracker displayTracker) {
         super(keyguardSliceView);
+        mHandler = handler;
+        mBgHandler = bgHandler;
         mActivityStarter = activityStarter;
         mConfigurationController = configurationController;
         mTunerService = tunerService;
@@ -182,24 +192,34 @@
      * Update contents of the view.
      */
     public void refresh() {
-        Slice slice;
+
         Trace.beginSection("KeyguardSliceViewController#refresh");
-        // We can optimize performance and avoid binder calls when we know that we're bound
-        // to a Slice on the same process.
-        if (KeyguardSliceProvider.KEYGUARD_SLICE_URI.equals(mKeyguardSliceUri.toString())) {
-            KeyguardSliceProvider instance = KeyguardSliceProvider.getAttachedInstance();
-            if (instance != null) {
-                slice = instance.onBindSlice(mKeyguardSliceUri);
+        try {
+            Slice slice;
+            if (KeyguardSliceProvider.KEYGUARD_SLICE_URI.equals(mKeyguardSliceUri.toString())) {
+                KeyguardSliceProvider instance = KeyguardSliceProvider.getAttachedInstance();
+                if (instance != null) {
+                    if (Flags.sliceManagerBinderCallBackground()) {
+                        mBgHandler.post(() -> {
+                            Slice _slice = instance.onBindSlice(mKeyguardSliceUri);
+                            mHandler.post(() -> mObserver.onChanged(_slice));
+                        });
+                        return;
+                    }
+                    slice = instance.onBindSlice(mKeyguardSliceUri);
+                } else {
+                    Log.w(TAG, "Keyguard slice not bound yet?");
+                    slice = null;
+                }
             } else {
-                Log.w(TAG, "Keyguard slice not bound yet?");
-                slice = null;
+                // TODO: Make SliceViewManager injectable
+                slice = SliceViewManager.getInstance(mView.getContext()).bindSlice(
+                        mKeyguardSliceUri);
             }
-        } else {
-            // TODO: Make SliceViewManager injectable
-            slice = SliceViewManager.getInstance(mView.getContext()).bindSlice(mKeyguardSliceUri);
+            mObserver.onChanged(slice);
+        } finally {
+            Trace.endSection();
         }
-        mObserver.onChanged(slice);
-        Trace.endSection();
     }
 
     void showSlice(Slice slice) {
diff --git a/packages/SystemUI/tests/src/com/android/keyguard/KeyguardSliceViewControllerTest.java b/packages/SystemUI/tests/src/com/android/keyguard/KeyguardSliceViewControllerTest.java
index 4d3243a..edb910a 100644
--- a/packages/SystemUI/tests/src/com/android/keyguard/KeyguardSliceViewControllerTest.java
+++ b/packages/SystemUI/tests/src/com/android/keyguard/KeyguardSliceViewControllerTest.java
@@ -22,8 +22,10 @@
 import static org.mockito.Mockito.when;
 
 import android.content.pm.PackageManager;
+import android.os.Handler;
 import android.test.suitebuilder.annotation.SmallTest;
 import android.testing.AndroidTestingRunner;
+import android.testing.TestableLooper;
 import android.testing.TestableLooper.RunWithLooper;
 import android.view.View;
 
@@ -57,17 +59,22 @@
     private ActivityStarter mActivityStarter;
     private FakeDisplayTracker mDisplayTracker = new FakeDisplayTracker(mContext);
     private DumpManager mDumpManager = new DumpManager();
-
+    private Handler mHandler;
+    private Handler mBgHandler;
     private KeyguardSliceViewController mController;
 
     @Before
     public void setUp() throws Exception {
         MockitoAnnotations.initMocks(this);
+        TestableLooper testableLooper = TestableLooper.get(this);
+        assert testableLooper != null;
+        mHandler = new Handler(testableLooper.getLooper());
+        mBgHandler = new Handler(testableLooper.getLooper());
         when(mView.isAttachedToWindow()).thenReturn(true);
         when(mView.getContext()).thenReturn(mContext);
-        mController = new KeyguardSliceViewController(
-                mView, mActivityStarter, mConfigurationController,
-                mTunerService, mDumpManager, mDisplayTracker);
+        mController = new KeyguardSliceViewController(mHandler, mBgHandler, mView,
+                mActivityStarter, mConfigurationController, mTunerService, mDumpManager,
+                mDisplayTracker);
         mController.setupUri(KeyguardSliceProvider.KEYGUARD_SLICE_URI);
     }