<!-- DO NOT DELETE validate_template=true template_path=.github/ISSUE_TEMPLATE/bug.md --> ### [READ] Step 1: Are you in the right place? I do. reporting an ANR coming from `RemoteConfigComponent` (as far as I can say) ### [REQUIRED] Step 2: Describe your environment Firebase BoM 25.6.0 (Firebase Perf 19.0.8 if I'm not mistaken) ### [REQUIRED] Step 3: Describe the problem We are experiencing thousands ANRs at FirebasePerformance creation step. Looking at the source code, I believe the thread blocks trying to get/create an instance from `RemoteConfigComponent.get("fireperf")`. that method is access from main thread, is synchronized and internally it executes a few disk accesses. Here is a stacktrace of the main thread and another one, both blocked. Main thread: ``` at com.google.firebase.perf.zza.create (zza.java:2) at com.google.firebase.components.ComponentRuntime.lambda$new$0 (ComponentRuntime.java:69) at com.google.firebase.components.ComponentRuntime$$Lambda$1.get (ComponentRuntime.java) at com.google.firebase.components.Lazy.get (Lazy.java:53) at com.google.firebase.components.ComponentRuntime.initializeEagerComponents (ComponentRuntime.java:158) at com.google.firebase.FirebaseApp.initializeAllApis (FirebaseApp.java:563) at com.google.firebase.FirebaseApp.initializeApp (FirebaseApp.java:304) at com.google.firebase.FirebaseApp.initializeApp (FirebaseApp.java:268) at com.careem.superapp.core.analytics.impl.firebase.FirebaseInitializer.initialize (FirebaseInitializer.java:33) at com.careem.superapp.initialization.BaseSuperApp.onCreate (BaseSuperApp.java:58) at com.careem.superapp.SuperApp.onCreate (SuperApp.java:44) at android.app.Instrumentation.callApplicationOnCreate (Instrumentation.java:1155) at android.app.ActivityThread.handleBindApplication (ActivityThread.java:6315) at android.app.ActivityThread.access$1300 (ActivityThread.java:220) at android.app.ActivityThread$H.handleMessage (ActivityThread.java:1815) at android.os.Handler.dispatchMessage (Handler.java:106) at android.os.Looper.loop (Looper.java:226) at android.app.ActivityThread.main (ActivityThread.java:7224) at java.lang.reflect.Method.invoke (Method.java) at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run (RuntimeInit.java:500) at com.android.internal.os.ZygoteInit.main (ZygoteInit.java:913) ``` Other thread: ``` at com.google.firebase.components.Lazy.get (SourceFile:3) at g.k.c.d.a.get (SourceFile:2) at com.google.firebase.components.ComponentRuntime.get (SourceFile:1) at com.google.firebase.FirebaseApp.get (SourceFile:2) at com.google.firebase.perf.FirebasePerformance.getInstance (SourceFile:5) at com.google.firebase.perf.internal.zzd.zzbt (SourceFile:2) at com.google.firebase.perf.internal.zzd.zzc (SourceFile:2) at g.k.c.k.a.b.run (SourceFile:1) at java.util.concurrent.ThreadPoolExecutor.runWorker (ThreadPoolExecutor.java:1167) at java.util.concurrent.ThreadPoolExecutor$Worker.run (ThreadPoolExecutor.java:641) at java.lang.Thread.run (Thread.java:764) ``` #### Steps to reproduce: Sorry, can't repro locally. but the above stack trace should give an indication. I don't think is relevant, but also wanted to add we disabled the `FirebaseInitProvider` and we init manually #### Relevant Code: