
Ultra Fast Optimization
This is a concise and high-performance optimization modpack, aiming to support those less commonly used Minecraft versions.
About this Modpack
Introduction
This modpack is dedicated to improving the performance of those less commonly used Minecraft versions, delivering more FPS and a smoother experience for players. On the 1.20.6 Fabric version, it boosts frame rates by 170%–220% compared to vanilla.
The modpack can also serve as a foundation—you can add more mods on top of it, or even create your own modpack based on it.
License
The Ultra Fast Optimization Modpack is made available under the CC0 1.0 Universal Public Domain Dedication. By applying this dedication, the licensor waives all copyright and related rights in the work, to the extent permitted by law, and dedicates the work to the public domain.
You are permitted to use the work for any purpose, including commercial use, and may freely copy, modify, distribute, perform, display, or provide network services based on it, without any requirement to retain the original attribution or license notice. However, you may not imply or state that the original author endorses or supports your use of the work.
The modpack is provided “as is”, without any warranties of any kind, either express or implied, including but not limited to warranties of merchantability, fitness for a particular purpose, or non‑infringement. In no event shall the authors or copyright holders be liable for any claim, damages, or other liability arising from, out of, or in connection with the use or performance of the work.
This notice is a brief summary only. For the full legal terms, please refer to the official legal text of the CC0 1.0 Universal license.
Available Versions
How to Set Up a Ultra Fast Optimization Server
Order Server
Choose at least 4 GB RAM (6 GB recommended for Ultra Fast Optimization). Based on player count: per 5 players.
Install Modpack in Dashboard
Open the modpack browser in the dashboard, search for "Ultra Fast Optimization" 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
Ultra Fast Optimization 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 Ultra Fast Optimization server really need?
Minimum 4 GB, recommended 6 GB for stable performance. per 5 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 €5.2/month).
Can I add custom mods to Ultra Fast Optimization 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.
Ultra Fast Optimization 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 Ultra Fast Optimization Server
Start your own server with automatic modpack installation.
Supported Versions
Start your Ultra Fast Optimization Server now
From €5.20/month; 6 GB RAM is recommended for best performance.
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