Uuirco's Crystal Optimizer
A lightweight Fabric mod that improves End Crystal responsiveness by removing crystal placement delay, instantly hiding broken crystals client-side, and providing configurable crystal spin speed.
About this Mod
Crystal Optimizer 😎
Crystal Optimizer is a lightweight Fabric client-side mod focused on making End Crystal PvP feel smoother and more responsive.
Features
- Instant crystal placement (removes the vanilla crystal use delay)
- Client-side crystal break prediction
- Instantly hides crystals after attacking them
- Configurable crystal spin speed
- Mod Menu integration
- Lightweight and optimized
Configuration
Open Mod Menu and click Configure.
Available settings:
Enabled / Disabled
Crystal Spin Speed
- 0 = Vanilla
- 1 = Fast
- 2 = Very Fast
- 3 = Extreme
Settings are automatically saved and restored after restarting Minecraft.
Requirements
- Fabric Loader
- Fabric API
- Mod Menu (optional, for configuration)
Compatibility
- Minecraft 1.21.11
- Fabric
Notes
This is a client-side optimization mod. Servers do not need to install it.
Available Versions
How to Install Uuirco's Crystal Optimizer 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". Click "Install" – done! Alternatively, upload the .jar via SFTP to the /mods folder.
Compatibility
Mod Loaders
Minecraft Versions
1.21.11
Server-side
✗ UnsupportedRecommended RAM
4 GB(min. 3 GB)Frequently Asked Questions
Uuirco's Crystal Optimizer 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 compatible with fabric?
Uuirco's Crystal Optimizer officially supports fabric for Minecraft 1.21.11. The Mado dashboard automatically detects incompatible loader combinations.
Server lagging with Uuirco's Crystal Optimizer – how to optimize performance?
Recommended RAM: 4 GB (per 8 players). Use /spark profiler to check if Uuirco's Crystal Optimizer 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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Install Uuirco's Crystal Optimizer with just one click on your server.