Simply Just Optimized

Simply Just Optimized

The Simply Just Optimized (a fork of SO) modpack aims to provide a base of the best optimization mods available, configured for the maximum performance achievable

by AyySail
105 Downloads
0 Followers
fabricMC 1.21.11lightweightoptimization

Screenshots

on low end device
100 FPS ON LOW END COMPUTER!
Banner 1.21.11+
20.1+ banner
same world,same settings but not using SFO
FPS On low end device (macbook air) from 2017 with the modpack/

About this Modpack

simply-optimized

fabric

forge

this video you can see it in action! (Note:with tweaked settings you can get more!)

How to instail the modpack (Make sure you download from this url Not the SOP one

)

The Simply Just Optimized (a fork of SO) modpack aims to provide a base of the best optimization mods available, configured for the maximum performance achievable. Thanks to countless hours of research, it often outperforms other optimization solutions in benchmarks, and when it doesn't, I investigate why to improve it further.

SO is explicitly built with simplicity and high maintainability in mind; the goal is to make for a reflection of the bleeding edge of Minecraft optimization at the time, and that's what the focus is on. That means little to no quality-of-life or visual enhancements are included in the pack by default - you are expected to add any non-optimization mods you want on your own.

This also means it's able to recieve mod updates with new performance improvements quickly, and update to new Minecraft versions in a matter of (sometimes)hours!

Forge? note in works but might come soon

Notice: 26 is taking while to get all mods updated! Click "follow" to be let known when it drops!

Tested on a 2017 MacBook Air (8GB RAM) — 70+ FPS in survival 100 FPS+ On superflat "Low end hardware"! Your New Laptop or computer should peak more!

Available Versions

Simply Just Optimized 1.0.0release
MC 1.21.11fabric105 downloads
February 19, 2026

How to Set Up a Simply Just Optimized Server

1

Order Server

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

2

Install Modpack in Dashboard

Open the modpack browser in the dashboard, search for "Simply Just Optimized" 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

Simply Just Optimized 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 Simply Just Optimized 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 Simply Just Optimized 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.

Simply Just Optimized 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 Simply Just Optimized 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-SJO-License
Server-side
Optional
Client-side
Optional

Supported Versions

1.21.11

Start your Simply Just Optimized Server now

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

Configure Server →