>real native components
Since when does React Native use real native components? Last time I've checked it wasn't capable of doing ANYTHING with my phones NFC scanner or native camera...
With flutter I can just build a Kotlin component and integrate it easily into my app. Also Flutters performance is extremely good, I dont know what you are on about. Our app is used on extremely old phones and has great performance. (I am not even a professional android/flutter dev, so I didnt optimize for performance).