After 1.14 to 1.16.4 I can't interact world.

All-time when i playing Minecraft 1.14+ every mobs are stopping and teleporting to end path, when I break the block, it will reappear., When i open chest, i must wait 9 seconds to open chest, and chunks slowly rendering. And this happend from 1.14+ "Villager and Pillager Update" And i tried to allocate ram to 4G ram but still happening, and tick showing normal value.