So, there is a lag problem. My Minecraft gameplay used to be fine until I updated it to v1.16.100.

I used to get 50+ fps at the older versions, but now I get like 15 to 20 fps. I've tried fps booster packs, set the lowest settings and killed all entities in my copy of my survival world but the fps still remained low. 

I still have like free half a stack of gb in my phone.

Please fix this problem in the next update.