
Rarely Optimized
Rarely Optimized is the performance focused Minecraft optimization mod pack.
About this Modpack
Rarely-Optimized - Lightweight Optimization Modpack
Rarely-Optimized is a lightweight, client-side Fabric optimization modpack designed to significantly improve FPS, reduce lag, and provide a smooth Minecraft experience without changing vanilla gameplay.
This modpack focuses on performance, stability, and configurability while keeping the game visually clean and shader-ready.
🚀 Features
Major FPS boost using modern optimization mods
Reduced CPU & RAM usage
Faster chunk loading and smoother gameplay
Shader support with Iris
Fully client-side (works on any server)
Vanilla-friendly, no gameplay changes
🧩 Included Mods
Sodium, Sodium Extra & Reese’s Sodium Options
Iris Shaders
FerriteCore & ModernFix
Entity Culling & More Culling
ImmediatelyFast & Dynamic FPS
Mod Menu & Cloth Config API
Krypton, Exordium, ScalableLux
Mouse Tweaks, Zoomify, Dynamic Lights
Crash Assistant
🖥️ Compatibility
Loader: Fabric
Environment: Client-side only
Works with: Singleplayer & Multiplayer
Shader Support: Yes (via Iris)
⚠️ Notes
This modpack does not need to be installed on the server
Some mods may use different versions for stability
Designed for low-end to mid-range PCs, but works great on high-end systems too
📌 Goal
Vanilla Minecraft, but faster, smoother, and more stable.
Available Versions
How to Set Up a Rarely Optimized Server
Order Server
Choose at least 4 GB RAM (6 GB recommended for Rarely Optimized). Based on player count: per 8 players.
Install Modpack in Dashboard
Open the modpack browser in the dashboard, search for "Rarely Optimized" and click "Install". The fabric loader and Minecraft 1.21.10 are configured automatically.
Start Server & Play
Start the server – all mods are loaded automatically. Share the server IP with friends and play together!
Frequently Asked Questions
Rarely Optimized server crashes or won't start – what to do?
Most common causes: insufficient RAM or wrong fabric loader. Check latest.log for "OutOfMemoryError" → increase RAM to at least 6 GB. For "Mixin" or "ClassNotFoundException" errors: modpack version and loader don't match. With Mado Hosting, loader and Minecraft version are auto-configured on modpack install – preventing most startup issues.
How much RAM does a Rarely Optimized server really need?
Minimum 4 GB, recommended 6 GB for stable performance. per 8 players. Important: Minecraft modpacks need more RAM than vanilla – plan extra per additional player. With Mado Hosting, you can scale RAM up live at any time without data loss (from €8/month).
Can I add custom mods to Rarely Optimized without conflicts?
Yes, but check compatibility: only use mods for the same loader (fabric) and same Minecraft version (1.21.10). Common issues: ID conflicts with recipe mods and incompatible coremod versions. The Mado dashboard mod browser only shows compatible mods and warns about known conflicts.
Rarely Optimized server lagging – performance tips
1) Increase RAM to 6 GB+. 2) Reduce server view-distance to 8 (server.properties). 3) Pre-generate chunks with the "Chunky" plugin. 4) Use /spark profiler to check which mods consume the most tick time. With Mado Hosting, all servers run on NVMe SSDs with dedicated CPU cores – eliminating hardware as a bottleneck.
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Rent Rarely Optimized Server
Start your own server with automatic modpack installation.
Supported Versions
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From €8.00/month with 6 GB RAM for the best performance.
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