Only Optimizer
NO bloated utilities. NO fluff. JUST extreme optimization.
A performance-focused modpack with a single goal: make Minecraft run as fast as possible. Every mod included earns its place — nothing extra, nothing unnecessary.
Includes Complementary Unbound r5.8 + Euphoria Patches out of the box, so you get stunning visuals without sacrificing performance.
✦ Featured Mods
| Category | Mods |
|---|---|
| Rendering | Sodium, Iris, ImmediatelyFast, Entity Culling, More Culling |
| World & Chunks | Lithium, C2ME, Distant Horizons, ScalableLux, Alternate Current |
| Memory | FerriteCore, ModernFix, BadOptimizations |
| Network | Krypton, Packet Fixer, XL Packets, Server Pinger Fixer |
| Upscaling | Super Resolution (FSR / DLSS / XeSS) |
| QoL | Dynamic FPS, Mod Menu, Crash Assistant |
✦ Included Shader
Complementary Unbound r5.8 + Euphoria Patches 1.9.0 is bundled and pre-configured, ready to use from the first launch.
✦ Requirements
- Loader: Fabric 0.19.2
- Minecraft: 26.1.2
- RAM: 4GB minimum, 6GB+ recommended
- A GPU that supports OpenGL 4.6 is required for the shader.
Quick facts
- Edition: Minecraft Java
- File type: .jar
- Minecraft version listed: 26.1.2
- How to install: Install the matching mod loader (Forge, Fabric or NeoForge) for your Minecraft version. → Download the .jar. → Put it in the .minecraft/mods folder and launch that loader profile.
- Where to get it: Opens on Modrinth — not every file is mirrored on our own servers.
Install steps are the general flow for this file type — How to install Minecraft Java mods & modpacks walks through it step by step.
Verified by MCModsHub
- Downloads as Only Optimizer 1.0.0.mrpack
- Download size: 6.9 MB
- Download link checked 23 Aug 2026 — working
These come from our own check of the pack file, not from the source page.