Although the game displays stable graphics performance at 120 FPS, there are a few abnormal behaviors that negatively impact the gameplay experience:
Slow falling of blocks such as sand or gravel.
Lag when breaking blocks: When destroying a block, it takes a long time to disappear or even reappear momentarily.
Mobs or entities "teleport" even when playing offline.
Opening chests, crafting, and other actions experience delays similar to network lag.
Man I saw the problem. Your Happy Ghasts are causing that bug. This happens when you trap them in fences. Just keep they away from your base. It's a bug. Check this out:
MCPE-222147 .