peroxide

Hydrazine makes rendering cheaper. Peroxide keeps the rest of the game steady: it governs memory usage, garbage collection, and frame pacing so a long session doesn't degrade into stutter and hitches.

What it does

• Memory/GC governor — keeps heap pressure under control without constant collection pauses
• Idle GC — garbage collection is only scheduled when the frame budget isn't at risk, so you keep your FPS
• FPS-aware particle scaling — particle load scales to what your machine is actually delivering instead of a fixed cap
• Latency-only autosave spacing — autosave timing adapts to keep chunk I/O off the render thread; your world data is untouched
• In-game performance HUD — live view of memory, GC activity and frame timing
• Small GUI — tweak the governor without editing config files by hand

Requirements

• Minecraft 1.21.11
• Fabric Loader 0.18.4+
• Fabric API
• Hydrazine (recommended — Peroxide is built to sit alongside it)