LagFixer is a performance optimization plugin for your Minecraft server that focuses on smarter mob AI and cleaner background processing instead of brutal gameplay cuts. It optimizes pathfinding logic, reduces unnecessary object creation, and tweaks targeting behavior for mobs across Minecraft 1.16 to 1.21, keeping TPS higher even with many entities active. Highly asynchronous, it offloads heavy tasks away from the main thread to avoid stutters.
Trusted by thousands of servers, this lightweight tool fits survival worlds and large networks alike. On our BoxToPlay infrastructure, LagFixer helps keep gameplay fluid while preserving a natural feel for players who hate aggressive lag clear plugins.
| Version | Minecraft | Loaders |
|---|---|---|
| LagFixer 1.5.1.4 [build 135] | 1.13 - 1.21.10 | bukkit paper purpur spigot |
| LagFixer 1.5.1.3 [build 134] | 1.13 - 1.21.10 | bukkit paper purpur spigot |
| LagFixer 1.5.1.2 (folia build) | 1.20 - 1.21.10 | folia |
| LagFixer 1.5.1.2 [build 133] | 1.13 - 1.21.10 | bukkit paper purpur spigot |
| LagFixer 1.5.1.1 [build 132] | 1.13 - 1.21.10 | bukkit paper purpur spigot |
| LagFixer 1.5.1 [build 131] | 1.13 - 1.21.10 | bukkit paper purpur spigot |
| LagFixer 1.5.0.7 [build 130] | 1.13 - 1.21.10 | bukkit paper purpur spigot |
| LagFixer 1.5.0.6 [build 129] | 1.16 - 1.21.10 | bukkit paper purpur spigot |
| LagFixer 1.5.0.5 [build 128] | 1.16 - 1.21.10 | bukkit paper purpur spigot |
| LagFixer 1.5.0.4 [build 127] | 1.16 - 1.21.10 | bukkit paper purpur spigot |
Create your Minecraft server and install the LagFixer plugin with one click!