QuirkOptimizations
A mod that increases the speed of EVERYTHING in Minecraft, from Texture Pack loading speed, up to keyboard delay.
⬇ Download on Modrinth
QuirkOpts (QuirkOptimizations) is a Fabric client-side performance mod for Minecraft 1.21.4 designed to make the game feel faster overall.
Known Issue: Clicking on the credits text crashes your game due to a bug
It focuses on:
faster startup responsiveness quicker resource pack reload handling smoother client performance with configurable optimization toggles a simple in-game settings screen opened with the O key persistent user preferences saved automatically Features include:
- Fast Startup toggle
- Fast Resource Reload toggle
- Reduced particles
- Low latency UI behavior
- Entity shadow toggle
- Aggressive mode for stronger performance-oriented adjustments
This mod is meant to be a simple, user-friendly optimization companion for players who want better responsiveness without complicated setup.
- Ships as QuirkOpts-1.21.4.jar — drop this file into the mods folder
- Download size: 50 KB
- Download link checked 17 Aug 2026 — working
These come from our own check of the pack file, not from the source page.