Zombie Lag Fix
A legacy fabric mod that uses the pathfinding throttling code from 1.9.4 to reduce lag caused by zombie pathfinding.
About this Mod
A legacy fabric mod that uses the pathfinding throttling code from 1.9.4 to reduce lag caused by zombie pathfinding. Most of the reduction in CPU usage stems from not recalculating paths if the targeted entity (for example a villager) is not moving.
Available Versions
How to Install Zombie Lag Fix on Your Server
Order Server
Order a Minecraft Java server with at least 3 GB RAM (4 GB recommended).
Set legacy-fabric Loader
In the panel under "Egg", select the legacy-fabric loader and matching Minecraft version (1.6.4).
Install Mod
Open the mod browser in the dashboard and search for "Zombie Lag Fix". Click "Install" – done! Alternatively, upload the .jar via SFTP to the /mods folder.
Compatibility
Mod Loaders
Minecraft Versions
1.6.4
Server-side
✓ RequiredRecommended RAM
4 GB(min. 3 GB)Frequently Asked Questions
Zombie Lag Fix server crashes on startup – what to do?
Most common cause: wrong legacy-fabric version or insufficient RAM. Check the server log (latest.log) for "OutOfMemoryError" or "Mixin" errors. With Mado Hosting: ensure at least 3 GB RAM is allocated and the loader matches the mod version (1.6.4). You can switch loaders with one click in the panel.
Is Zombie Lag Fix compatible with legacy-fabric?
Zombie Lag Fix officially supports legacy-fabric for Minecraft 1.6.4. The Mado dashboard automatically detects incompatible loader combinations.
Server lagging with Zombie Lag Fix – how to optimize performance?
Recommended RAM: 4 GB (per 8 players). Use /spark profiler to check if Zombie Lag Fix consumes the most tick time. Common fixes: reduce server view-distance to 8-10, install "performant" or "starlight" as supplementary mods on Forge. With Mado Hosting, your server runs on NVMe SSDs with dedicated CPU cores for minimal latency.
Similar Mods
![[EMF] Entity Model Features](https://cdn.modrinth.com/data/4I1XuqiY/6e5bbd0d06b1741bfdab6c0cfab6de8fdaf0064c_96.webp){kind=small}
Rent Modded Server
Install Zombie Lag Fix with just one click on your server.