Panda Anti-Lag
by TreeOfSelf
With Panda Anti-Lag installed on a Fabric server, the operator can cap how many projectiles, ender pearls and mobs load in one area before tick lag builds up.
What it does
The mod targets common causes of server lag. It can limit the number of projectile entities in an area, and it can stop players from loading large numbers of ender pearl chunks at once. When too many mobs or vehicles gather in one place, their ticks are staggered so that each entity updates on a different tick instead of all together. Staggering mob ticks lets a server hold a large crowd of mobs in an area, and only the mobs there feel the difference. The aim is for the server's tick rate to stay at its full target under load.
Panda Anti-Lag is a server-side only mod, so players join without installing anything, and only the server needs the Fabric loader. It is published for Fabric alone, with builds for 1.21.4 – 26.3 covering 12 release versions. The latest file is 2.3.0+26.3 for 26.3, dated 2026-10-08. The code is open source under the CC0 1.0 Universal license, and the source and issue tracker are public. A demo server is listed by the author for testing the settings.
Key features
Projectile entity limits
Caps how many projectile entities can exist in a given area, so a large volley does not overload the server.
Ender pearl chunk control
Prevents a single player from loading too many chunks with ender pearls, a common way to stall a server.
Mob and vehicle tick staggering
Spreads the updates of crowded mobs and vehicles across ticks, so dense areas do not stall the whole server.
Configurable settings
The limits and thresholds can be adjusted in the configuration, so the server owner decides how strict the mod is.
Compatibility
Latest build for each game version and loader.
26.x4 of 4 versions with builds
1.21.x8 of 8 versions with builds
Only full game releases are shown. This mod publishes no snapshot builds.
Use cases
Who it’s for: Server owners running Fabric who want to control entity-driven lag without adding players' side installs. It suits public servers and survival worlds with large mob counts.
How it compares
Tick Stabilizer is server-side only and published for Fabric 1.18 – 1.21.11, but it is not open source and is under All rights reserved. Lag Protect is also server-side only and open source under the MIT License, with files for 1.20.5 – 26.2. Simple World Anti-Lag runs on Fabric, Forge, NeoForge and Quilt for 1.21.5 – 1.21.8 and needs the server while clients stay optional, under a Creative Commons non-commercial license.
| Mod | Loaders | Game versions | Environment | Updated |
|---|---|---|---|---|
| Panda Anti-Lag | Fabric | 1.21.4 – 26.3 | Server-side only | 2026-10-08 |
| Tick Stabilizer | Fabric | 1.18 – 1.21.11 | Server-side only | 2026-03-24 |
| Lag Protect | Fabric | 1.20.5 – 26.2 | Server-side only | 2026-08-20 |
| Simple World Anti-Lag | Fabric, Forge, NeoForge and Quilt | 1.21.5 – 1.21.8 | Server required, client optional | 2025-07-02 |
Questions
Does Panda Anti-Lag need to be installed on players' clients?
Which game versions does Panda Anti-Lag support?
Is the source code available?
In the catalog
Panda Anti-Lag is one of 3,545 Optimization mods on ModsFinder, and one of 2,575 Optimization mods for Fabric. 8,071 mods support Minecraft 26.3.
More from TreeOfSelf
Similar mods
What the author says
Stop common causes for lag on your Fabric server. This mod aims to prevent common causes of lag by allowing you to limit the amount of projectile entities in an area, prevent someone from having too many ender pearls loaded, stagger mob ticks in an area with too many mobs, and stagger vehicle ticks in an area with…
Official listing
- Modrinth page
- modrinth.com/mod/pandaantilag
- Owner
- TreeOfSelf
- Published
- 2025-03-08
- Updated on Modrinth
- 2026-10-08
- Facts verified
- 2026-10-15