Skip to content

Raw Input Buffer

Reduces input lag and frame rate drops caused by mouse polling events - allowing you to use high polling rate mice

Fabric
Loaders
Fabric
Downloads on Modrinth
71.9K
Followers on Modrinth
35
versions
25
Updated
October 15, 2026Oct 15
Published
in 2026

At a glance

Runs on Fabric
For Minecraft 1.21–26.3
Client only — no need to install it on the server
Latest version — 1.2.0+26.3 from October 15, 2026
Requires WalksyLib
License MIT — free
Where it's needed
In gamerequiredOn servernot needed

Install in the game only; not needed on the server

Game versions1.21–26.3

Raw Input Buffer

This mod aims to reduce input lag, micro-stutters, and frame rate drops caused by Minecraft's default mouse handling. This is especially noticiable on polling rates above 1000 Hz, where frame rates can drop by 50-70% when moving the camera around, depending on the polling rate. With this mod installed you'll be able to use polling rates higher than 1000 Hz with no stutters.

My testing was done using a mouse with a polling rate of up to 8000 Hz.


Solution:

This mod intercepts and replaces Minecraft's mouse handling. Instead of relying on GLFW, the mod communicates directly with the Windows Kernal and offloads mouse polling to a dedicated, asynchronous background thread using a hidden window class. When the cursor is locked in game, standard legacy mouse data is no longer generated, freeing up CPU resources.

Compatability:

Windows OS only: This mod relies on native Windows APIs and will automatically disable itself on other operating systems.


Credits

  • Mod: Walksy

I created this mod around 4-5 weeks ago but noticed a similar concept was recently added to Ixeris by decce6. While the implementations differ, both mods achieve similar results. I recommend you try them both out.

FAQ

How to install Raw Input Buffer?

Install Fabric for your Minecraft version, download Raw Input Buffer for the same version and loader, put the file into the mods folder and launch the game with the loader profile.

Which Minecraft versions does Raw Input Buffer support?

Raw Input Buffer has builds for Minecraft 1.21–26.3.

Is Raw Input Buffer needed on the server?

Client only — no need to install it on the server

License and source
MIT Licensefree to use and share with credit to the author
Original — Modrinth↗Files unchanged, verified with SHA-512Is this your mod? For rights holders

The site uses cookies: the necessary ones for sign-in and the theme, plus the Yandex Metrica and LiveInternet visit counters — they show us how the site is used. We have no advertising cookies. More