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LagShield Ultimate (Anti Lag)

The intelligent performance modulator for Minecraft Server. LagShield Ultimate uses Arclight-safe async processing to dynamically regulate mob AI, chunk density, and entity speed based on real-time server stress (MSPT). Stops lag before it happens.

File Details
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LagShield Ultimate V15

Byepicskydex
  • R
  • May 11, 2026
  • 72.63 KB
  • 871
  • 1.21.1
  • NeoForge

File Name

lagshieldV15.jar

Supported Versions

  • 1.21.1

Curse Maven Snippet

NeoForge

implementation "curse.maven:lagshild-ultimate-1459382:8073441"
Curse Maven does not yet support mods that have disabled 3rd party sharing

Learn more about Curse Maven

Bug Fixes

  • Fixed a server crash caused by the World Cleaner and Force Clean command
  • Fixed a rare race condition in the Async System

New Features

  • Config is now split into a folder (config/lagshield/) with separate files for features and mob settings
  • /lagshield reload — reload all configs without restarting the server
  • Mob Spawn Controller — per-mob spawn control via mob_spawns.json. All mobs are auto-detected on startup. Set spawn weight, mob cap, and enable/disable individual mobs.
  • Tick Rate Controller — entities far from players tick less frequently, saving performance without removing them. Scales automatically with TPS.

Performance

  • Various internal optimizations reducing main thread overhead