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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.
Screenshot 2026-02-16 174516.png

Screenshot 2026-02-16 174516.png

Screenshot 2026-02-15 212345.png

Screenshot 2026-02-15 212345.png

Description

LagShield

Server-side performance mod. Monitors server load in real time and dynamically adjusts entity AI, mob spawns, and movement speeds to keep TPS stable. No client install required.

Features

  • Adaptive system — reacts to live MSPT, no static limits
  • Async mob AI and density calculations off the main thread
  • Per-chunk mob limits that scale with server load
  • Tick rate controller — distant entities think less often
  • Per-mob config (mob_spawns.json) — auto-generated, edit spawn weight and mob cap per entity
  • Bosses, villagers, tamed animals, and name-tagged mobs are always protected
  • /lagshield reload — reload all configs without restarting

Configuration

Config lives in config/lagshield/ — lag_features.toml for module settings and mob_spawns.json for per-mob spawn control.

Compatibility

I Originally Designed it for hybrid servers (Arclight, Mohist). And Developed for the Werewolves vs Vampires modpack.

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LagShield Ultimate (Anti Lag) Team

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I mostly build mods to fix problems I run into myself. I share them here in case they help your modpacks and servers too. (we don't talk about SeedRay).

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