!lag™

!lag™ is a client-side Fabric optimization mod for Minecraft 1.21.11. It brings performance-focused graphics tuning, searchable settings, safe culling, particle limits, smooth zoom, and a lightweight FPS HUD into one clean client mod.

The goal is simple: make Minecraft easier to tune and smoother to play without changing gameplay logic or requiring anything on the server.

Highlights

Combined Video + !lag settings screen
Searchable settings with organized tabs
Safe entity and block entity culling
Distance and frustum culling controls
Particle budget limiter
Optional fullbright
Built-in FPS HUD
Smooth hold-to-zoom with scroll adjustment
Menu, overlay, unfocused, minimized, AFK, and deep-AFK FPS caps
Custom !lag startup loading screen

Performance Tools

!lag focuses on practical client-side tuning. You can limit expensive visuals, reduce unnecessary rendering, and quickly apply recommended settings from one place.

diff fps

X4 BOOSTED FPS!

Included tuning options:

Entity cull distance
Block entity cull distance
Visibility cache interval
Async visibility worker count
Particle budget per tick
Weather effects toggle
Entity shadows toggle
Leaf render mode
FPS HUD scale
Multiple background FPS caps

Better Settings

Vanilla video settings and !lag settings live together in a merged options screen. Search helps you find the option you need quickly, while tabs keep performance, safety, visuals, distance, and FPS controls easy to browse.

Zoom

!lag includes a smooth zoom keybind.

Default key: V
Hold the key to zoom
Scroll while zooming to adjust zoom strength

Compatibility

Minecraft: 1.21.11
Mod loader: Fabric
Java: 21
Environment: client-side only
Server required: no

Beta Note

This is an early release, so some features may continue to change as the mod is tuned and polished. Please report issues with your Minecraft version, Fabric Loader version, Fabric API version, and a short description of what happened.