Hello, this is for anyone who suffers from lag and the game kicking you out:
1_go to "developer options" (if you dont have them then go to about phone and click on the phone version 6-8 times)
2_go to "logger buffer sizes"
3_choose 16 mg/the last option you have
4_go to force 4x MSAA
5_turn it on.
6_free up some space (delete app cache data and emails if you dont have any apps to delete)
it worked for me and i hope this works for you and anyone who tries it <333o(^-^o)