diff --git a/core/java/android/provider/Settings.java b/core/java/android/provider/Settings.java
index bad43ffd4a0e9..96bc14ecb055c 100755
--- a/core/java/android/provider/Settings.java
+++ b/core/java/android/provider/Settings.java
@@ -9938,6 +9938,16 @@ public final class Settings {
          */
         public static final String ENABLE_EPHEMERAL_FEATURE = "enable_ephemeral_feature";
 
+        /**
+         * Toggle to enable/disable dexopt for instant applications. The default is for dexopt
+         * to be disabled.
+         * <p>
+         * Type: int (0 to disable, 1 to enable)
+         *
+         * @hide
+         */
+        public static final String INSTANT_APP_DEXOPT_ENABLED = "instant_app_dexopt_enabled";
+
         /**
          * The min period for caching installed instant apps in milliseconds.
          * <p>
diff --git a/services/core/java/com/android/server/pm/PackageManagerService.java b/services/core/java/com/android/server/pm/PackageManagerService.java
index d5b06ec534b2b..82434bee7a7f3 100644
--- a/services/core/java/com/android/server/pm/PackageManagerService.java
+++ b/services/core/java/com/android/server/pm/PackageManagerService.java
@@ -18164,8 +18164,10 @@ public class PackageManagerService extends IPackageManager.Stub
             // step during installation. Instead, we'll take extra time the first time the
             // instant app starts. It's preferred to do it this way to provide continuous
             // progress to the user instead of mysteriously blocking somewhere in the
-            // middle of running an instant app.
-            if (!instantApp) {
+            // middle of running an instant app. The default behaviour can be overridden
+            // via gservices.
+            if (!instantApp || Global.getInt(
+                        mContext.getContentResolver(), Global.INSTANT_APP_DEXOPT_ENABLED, 0) != 0) {
                 Trace.traceBegin(TRACE_TAG_PACKAGE_MANAGER, "dexopt");
                 // Do not run PackageDexOptimizer through the local performDexOpt
                 // method because `pkg` may not be in `mPackages` yet.