CoarWeave

CoarWeave

Optimium is a high performance Fabric modpack designed to maximize FPS reduce lag and deliver smooth stable gameplay for low end and mid range systems Every included mod is carefully selected to optimize rendering memory and CPU usage

by Hackeroiz450
71 Downloads
0 Followers
fabricMC 1.21.11lightweightmultiplayeroptimization

About this Modpack

CoarWeave

CoarWeave is a high-performance Fabric modpack designed to maximize FPS, reduce lag, and deliver smooth, stable gameplay for low-end and mid-range systems. Every included mod is carefully selected to optimize rendering, memory, and CPU usage, giving you the ultimate Minecraft experience without unnecessary bloat.

⚡ Key Features

Significant FPS boost

Reduced lag spikes and stuttering

Faster chunk loading

Lower RAM and CPU usage

Available Versions

CoarWeave 1.0.0release
MC 1.21.11fabric71 downloads
March 1, 2026

How to Set Up a CoarWeave Server

1

Order Server

Choose at least 4 GB RAM (6 GB recommended for CoarWeave). Based on player count: per 8 players.

2

Install Modpack in Dashboard

Open the modpack browser in the dashboard, search for "CoarWeave" and click "Install". The fabric loader and Minecraft 1.21.11 are configured automatically.

3

Start Server & Play

Start the server – all mods are loaded automatically. Share the server IP with friends and play together!

Frequently Asked Questions

CoarWeave 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 CoarWeave 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 CoarWeave without conflicts?

Yes, but check compatibility: only use mods for the same loader (fabric) and same Minecraft version (1.21.11). 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.

CoarWeave 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 CoarWeave Server

Start your own server with automatic modpack installation.

Recommended RAM:
6 GB(min. 4 GB)
From 8.00 / month
Create Server Now
1-Click Modpack Install
NVMe SSD Storage
DDoS Protection included
Automatic Backups

Details

License
LicenseRef-All-Rights-Reserved
Server-side
Required
Client-side
Required

Supported Versions

1.21.11

Start your CoarWeave Server now

From €8.00/month with 6 GB RAM for the best performance.

Configure Server →