Aetherium

Mod

Client-side Fabric performance mod that boosts FPS by intelligently culling distant and off-screen entities, particles, and block entities. Also optimizes sign rendering, beacon beams, clouds, weather, and animated textures. All configurable in-game.

Type

Mod

Modrinth Downloads

62,540

Modrinth ID

Fq8Q7hNH

Last Updated

Jun 28, 2026

Description

Aetherium

Aetherium is a high-performance client-side Fabric mod for Minecraft 1.21.11, designed to maximize FPS while preserving visual quality and compatibility. It uses advanced distance and frustum culling for entities, block entities, and particles, and streamlines rendering for signs, beacon beams, clouds, weather, and animated textures. All features are fully configurable in-game, with detailed tooltips and recommended settings.

Features

Advanced culling for entities, block entities, and particles (distance and frustum)
Hide distant name tags, shadows, and entity features for improved performance
Particle spawn limiting to prevent lag spikes
Optimized sign text and glow rendering
Configurable beacon beam rendering and animation
Instantly disable clouds, weather, and animated textures
Safe for multiplayer and compatible with all major performance mods
Multi-language configuration UI with clear tooltips