Compatible Optimisations Forge
Quicker than the competition! Compatible Optimisations, a well-researched game optimisation pack designed as a base to add mods upon whilst staying compatible. Also works as a vanilla optimisation pack. Now updated to 1.21!
About this Modpack
Compatible Optimisations
This is Compatible Optimisations, a modpack designed to optimise your minecraft client whilst allowing you to install and play with whichever mods you wish.
Features
Performance:
This modpack gives you highly enhanced game performance better than the likes of OptiFine thanks to a combination of great performance enhancing mods, notably Embeddium.
Fully Compatible:
Whilst being highly optimised for performance, this modpack manages to stay completely compatible with all the mods you want to use. This is thanks to all the mods being fully open source allowing for high compatibility.
Better for everyone:
This modpack is designed to enhance your performance on whatever device you are using from a complete potato to an overclocked beast you will still feel a giant performance leap.
Built for Forge:
This modpack has been created using Forge. The Forge API easy to use, supports a massive libary of mods, and is built to be easy to use by modders.
Fully Client-Side:
This modpack is fully client-sided. This means that this modpack and all of its performance enhancements can be used on any vanilla server you want!
Available Versions
How to Set Up a Compatible Optimisations Forge Server
Order Server
Choose at least 4 GB RAM (6 GB recommended for Compatible Optimisations Forge). Based on player count: per 5 players.
Install Modpack in Dashboard
Open the modpack browser in the dashboard, search for "Compatible Optimisations Forge" and click "Install". The forge loader and Minecraft 1.20.1 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
Compatible Optimisations Forge server crashes or won't start – what to do?
Most common causes: insufficient RAM or wrong forge 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 Compatible Optimisations Forge 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 €8/month).
Can I add custom mods to Compatible Optimisations Forge without conflicts?
Yes, but check compatibility: only use mods for the same loader (forge) and same Minecraft version (1.20.1). 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.
Compatible Optimisations Forge 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.
Rent Compatible Optimisations Forge Server
Start your own server with automatic modpack installation.
Supported Versions
Start your Compatible Optimisations Forge Server now
From €8.00/month with 6 GB RAM for the best performance.
Configure Server →