I've had my s21 a couple weeks now when I first got it it felt so good no issues couple weeks and it's lagging so bad I've tried everything to reduce it took all widgets off homescreen uninstalled aload of apps using a black wallpaper just reducing as much power usage as I can but it is still lagging badly with little freezes on things such as navigation gestures and my battery life I'm only getting about 3 and a half hours a day screen on time I have no idea what to do.
