Reduce Lag from Distant Mobs
Enable Mob AI Freezing
Locate the ["Mob Blocking AiLod Settings"] section in your configuration. Set enableMobBlockingAiLod = true if it isn't already enabled. This feature freezes mob AI calculations for creatures far from your player.
Adjust Distance Thresholds
Two distance settings control when mobs stop processing:
mobBlockingYDistance— vertical distance (up/down) in blocksmobBlockingXDistance— horizontal distance (forward/back/left/right) in blocks
Lower values freeze mobs sooner, saving more performance but potentially affecting gameplay. Higher values keep distant mobs active longer.
Exclude Boss Mobs
Boss mobs like the Ender Dragon and Wither are automatically excluded from AI freezing. If you want other mobs to always stay active, add them to mobBlockingYIgnoredMobs or mobBlockingXIgnoredMobs.
Save and Test
Restart your game to apply changes. Explore far from your base and notice reduced stuttering when many mobs are present.