All The Client Optimisations

All The Client Optimisations

A lot of client Optimisation and QoL mods For friends with potato PC's as well as RTX Cards

by Unknown
443 Downloads
0 Followers
fabricMC 1.21.11lightweightmultiplayeroptimization

About this Modpack

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This modpack aims to create an enjoyable Minecraft experience for all different kinds of hardware,
while supporting virtually every visual optimisation I could find.
With a few quality of life tweaks such as:
Here 'n' There and Simple Voice chat for easier communication. ATCO also comes with a custom version
of Vanilla Tweaks, as well as custom loading screen and menus.

Performance vs Quality
As of version 1.0 everything is set to performance mode. You can change this of course by going into the settings.
One thing that I disabled that you might not find easily is Particle rain, which if you want to use it has to be enabled via mod options.
One last thing: if you can afford it in the current RAM economy (written December 2025) I would advise giving ATCO 6Gb.
Have Fun

Available Versions

All The Client Optimisations 2.0release
MC 1.21.11fabric118 downloads
February 23, 2026
All The Client Optimisations 1.5release
MC 1.21.10fabric88 downloads
December 17, 2025
All The Client Optimisations 1.4release
MC 1.21.10fabric16 downloads
December 15, 2025
All The Client Optimisations 1.3release
MC 1.21.10fabric59 downloads
November 24, 2025
All The Client Optimisations 1.2release
MC 1.21.10fabric48 downloads
November 11, 2025

How to Set Up a All The Client Optimisations Server

1

Order Server

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

2

Install Modpack in Dashboard

Open the modpack browser in the dashboard, search for "All The Client Optimisations" 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

All The Client Optimisations 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 All The Client Optimisations 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 All The Client Optimisations 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.

All The Client Optimisations 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 All The Client Optimisations 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
MIT License
Server-side
Unsupported
Client-side
Required

Supported Versions

1.21.111.21.10

Start your All The Client Optimisations Server now

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

Configure Server →