Uuirco's Crystal Optimizer Server
Server-side companion mod for Crystal Optimizer. Allows administrators to enable or disable Crystal Optimizer features for all connected players with a simple command.
About this Mod
Crystal Optimizer Server
Crystal Optimizer Server is the official server-side companion mod for Crystal Optimizer.
This mod allows server administrators to control whether Crystal Optimizer features are permitted on their server. When disabled, compatible Crystal Optimizer clients will automatically deactivate their optimization features upon joining.
Features
- Enable or disable Crystal Optimizer support server-wide
- Automatically synchronizes the setting to connected players
- Persists settings across server restarts
- Lightweight and simple to use
- No client-side installation required for server operation
Command
/uuircofastercrystals true
Enables Crystal Optimizer support for all connected players.
/uuircofastercrystals false
Disables Crystal Optimizer support for all connected players.
Requirements
- Minecraft 1.21.11
- Fabric Loader
Notes
This mod is intended to be used alongside the Crystal Optimizer client mod. Players without the client mod are unaffected.
Available Versions
How to Install Uuirco's Crystal Optimizer Server on Your Server
Order Server
Order a Minecraft Java server with at least 3 GB RAM (4 GB recommended).
Set fabric Loader
In the panel under "Egg", select the fabric loader and matching Minecraft version (1.21.11).
Install Mod
Open the mod browser in the dashboard and search for "Uuirco's Crystal Optimizer Server". Click "Install" – done! Alternatively, upload the .jar via SFTP to the /mods folder.
Compatibility
Mod Loaders
Minecraft Versions
1.21.11
Server-side
✓ RequiredRecommended RAM
4 GB(min. 3 GB)Frequently Asked Questions
Uuirco's Crystal Optimizer Server server crashes on startup – what to do?
Most common cause: wrong fabric version or insufficient RAM. Check the server log (latest.log) for "OutOfMemoryError" or "Mixin" errors. With Mado Hosting: ensure at least 3 GB RAM is allocated and the loader matches the mod version (1.21.11). You can switch loaders with one click in the panel.
Is Uuirco's Crystal Optimizer Server compatible with fabric?
Uuirco's Crystal Optimizer Server officially supports fabric for Minecraft 1.21.11. The Mado dashboard automatically detects incompatible loader combinations.
Server lagging with Uuirco's Crystal Optimizer Server – how to optimize performance?
Recommended RAM: 4 GB (per 8 players). Use /spark profiler to check if Uuirco's Crystal Optimizer Server consumes the most tick time. Common fixes: reduce server view-distance to 8-10, install "performant" or "starlight" as supplementary mods on Forge. With Mado Hosting, your server runs on NVMe SSDs with dedicated CPU cores for minimal latency.
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