Mobtimizations - Entity Performance Fixes
Modby Corosus
Optimizes a lot of tasks that Entity AI wastefully performs, minimal effect on gameplay.
Type
Mod
CurseForge Downloads
0
CurseForge ID
974401
Modrinth Downloads
1,521,679
Modrinth ID
Kbz7UydC
Last Updated
Apr 26, 2026
Description
Server optimization mod that was originally created for the DeceasedCraft modpack to help with their high entity counts. The mod is focused on entities, reducing their impact on your server while keeping change in gameplay to a minimum.
Features:
- Reduces the rate of expensive mob wander pathfinding, even more so if far from players.
- Reduces how often the expensive enemy targeting tasks are run.
- For monsters, disables the expensive 3x3x3 hazard scanning that is constantly running every tick while path following, your pets are safe.
- Disables the frequent pathfinds done while already following a path.
- Reduces the expensive searching done to find a turtle egg to crush, for zombies/husks, by default fully disabling it.
- Optimizes the expensive zombie village raid task that scans around a lot for villagers, by default cuts the chance to 1/3.
- Wander pathfinding and enemy targetting are further reduced when the mob is not near a player.
- Each feature can be configured on/off, and some further with chance to cancel an attempt.
Demonstration:
With each test I had lots of extra mobs spawned - On my 20 core i5-13600K I kept 1000 monsters spawned to stress the server.
All the mods 7 - MC 1.18 modpack:
Mod off: 38ms avg - 95ms max
Mod on: 30ms avg (server load cut by 22%) - 45ms max (peak server load cut by over 50%!)

Deceasedcraft - MC 1.18 modpack:
Mod off: 32ms avg - 61ms max
Mod on: 24ms avg (server load cut by 25%) - 50ms max (peak server load cut by 20%)
- Requires CoroUtil to run: CoroUtil
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