On 1.16 there is a bug that causes some entities (entities that can angry) to not render inside spawners (https://bugs.mojang.com/browse/MC-189565).
- Native Minecraft Version:
- 1.16
- Tested Minecraft Versions:
- 1.16
Additionally, it can generate low FPS on some clientes.
This plugin fixes the low FPS issue by visually replacing all spawners to pig, which doesn't produce lag. The spawner itself will remain the same, but players see it different.
The list of spawner types it changes is:
- Bee
- Enderman
- Iron golem
- Polar bear
- Wolf
- Zombified piglin
(the ones that can be angry)

MobSpawnerFPSLagFix 1.1
Fix mob spawner FPS lag on 1.16