Optimum

Name: Optimum
Price: 8 EUR
Author: CRPT_X

A modpack which aims to optimise Minecraft as much as possible, and still keep the vanilla experience, while providing QoL features you'll constantly use!

by CRPT_X

68 Downloads

0 Followers

fabricMC 1.21.5lightweightmultiplayeroptimization

Rent Optimum Server

Screenshots

About this Modpack

Vanilla, enhanced.

Fed up of playing Minecraft with constant stutters and complicated UI?

Look no further than Vanilla+, the ultimate modpack which brings both optimisation and QoL to Minecraft, doubling your frames AND improving the general experience with features such as revamped containers UI, shulker box tooltips and MORE!

Compatible with Feather Client! (not included)

Benchmarks

1440p Fast graphics (unoptimised) ~300 FPS
1440p Fast graphics (Vanilla+) ~500 FPS
1440p Minimum settings (Vanilla+, superflat world looking at sky) - 1200 FPS

Tested on a Ryzen 9 5900x, RTX 3080 and 32GB of DDR4 RAM.

All featured/mentioned mods are NOT owned by me, they belong to their respective creators, and the mods are uploaded to Modrinth on the basis that they may be used in modpacks.

Available Versions

Vanilla+ 1.0.0release

MC 1.21.5fabric68 downloads

September 12, 2025

How to Set Up a Optimum Server

Order Server

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

Install Modpack in Dashboard

Open the modpack browser in the dashboard, search for "Optimum" and click "Install". The fabric loader and Minecraft 1.21.5 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

Optimum 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 Optimum 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 Optimum without conflicts?

Yes, but check compatibility: only use mods for the same loader (fabric) and same Minecraft version (1.21.5). 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.

Optimum 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.