8.11.8

Recently tried 8.11.8 for my Riva, but after successfully installing and booting. random lags and ui crashing has been encountered. sometimes it makes the phone hangs that it forces me to do some force shutdown just to be able to use it again. idk if this is a problem by default on china rom or...

After flashing latest 8.11.8 version on my redmi 5A(riva), TWRP gone... When i press power button+ volume up key,nothing comes at screen,no recovery.