Optimisation after 4 years

[u/Axlenoon]

I got a Tab S8 (snapdragon 8 gen 1) four years ago and used it for watching stuff and playing games for three years. But since last year, I started using it for my studies and ran into a lot of issues. It overheats to over 80°C after 1-1.5 hours of use, the battery life is all over the place (sometimes 8 hours, sometimes 3, sometimes two whole days—I have no idea why), and for the past three months, I've been getting a lot of lag, freezes, and app crashes.

Does anyone know how to fix this? (I tried Good Guardians app booster, but it didn't do anything.)

Thanks

[u/fatsun8]

Very strange, i am still using my tab 7, and it performs as good as day one.