Only Optimized/Mostly Optimized (QUILT)

Name: Only Optimized/Mostly Optimized (QUILT)
Price: 8 EUR
Author: olivef22z

Only Optimized/Mostly Optimized is a modpack that has no extra features so is great to create as a template if you want to make something with more features. supports 1.21.9 (1.21.10 + earlier versions coming soon!)

by olivef22z

45 Downloads

0 Followers

quiltMC 1.21.9lightweightoptimization

Rent Only Optimized/Mostly Optimized (QUILT) Server

Screenshots

About this Modpack

Features

Only Optimized/Mostly Optimized is a modpack with no extra quality of life features so acts great as a template to use whenever you want to make a new instance with more features. You can also use Only Optimized/Mostly Optimized as vanilla minecraft because it adds absolutly nothing to the game execpt higher performance. It has features like having less lag spikes, smoother FPS, improving mob AI, more optimized block ticking, dynamic FPS, and more! Thank you to Simply Optimized for the inspiration.

Projects:

Bee's Fancy Crops
Bare Bones
Complementary Shaders - Reimagined
Cubes Without Borders
Fast Better Grass
Iris Shaders
Lithium
Low on Fire
Mod Menu
No Resource Pack Warnings
No Telemetry
Sodium
Text Placeholder API

My Links

Fabric Version of Mostly Optimized

Neoforge Version of Mostly Optimized

Forge Version of Mostly Optimized

Fabric Version of Only Optimized

Neoforge Version of Only Optimized

More Projects Made by me

My Organization

Discord Server / Report Issues

Available Versions

1.21.9 - alpha1.0alpha

MC 1.21.9quilt45 downloads

November 11, 2025

How to Set Up a Only Optimized/Mostly Optimized (QUILT) Server

Order Server

Choose at least 4 GB RAM (6 GB recommended for Only Optimized/Mostly Optimized (QUILT)). Based on player count: per 8 players.

Install Modpack in Dashboard

Open the modpack browser in the dashboard, search for "Only Optimized/Mostly Optimized (QUILT)" and click "Install". The quilt loader and Minecraft 1.21.9 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

Only Optimized/Mostly Optimized (QUILT) server crashes or won't start – what to do?

Most common causes: insufficient RAM or wrong quilt 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 Only Optimized/Mostly Optimized (QUILT) 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 Only Optimized/Mostly Optimized (QUILT) without conflicts?

Yes, but check compatibility: only use mods for the same loader (quilt) and same Minecraft version (1.21.9). 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.

Only Optimized/Mostly Optimized (QUILT) 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.