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Optimization Build for Minecraft 1.20.1, 1.21.1

🪽 Maximum performance, eliminates stuttering, and speeds up anything while not breaking vanilla. Sodium, Vulkan, Embeddium and Celeritas.

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Updated
Updated 30.09.2026
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⭐ Optimization Modpack

This is a lightweight modpack focused on optimization, aiming to maximize performance. It consists only of well-chosen optimization mods, with no unnecessary mods included, which sets it apart from others

Optimization — screenshot 2

✨ Features

  • Maximum performance
  • Fast updates
  • Pre-configured settings
  • Wide selection(Sodium, Vulkan, Embeddium and Celeritas)

💽 Installation

  • Use the Modrinth App or use other launchers that can install modpacks from Modrinth, such as PrismLaucher
  • If you are using a official launcher, convert the .mrpack to .zip using the Modrinth Pack to Zip Converter

🧩Java and Flags

  • Use Java Eclipse Temurin 25 with the following flags: -XX:+UseZGC -XX:+UseCompactObjectHeaders
  • For more details, read the article

How to install Optimization

With Millida Launcher

  1. Install Millida Launcher

    The launcher is free: download it at millida.net/launcher and sign in with any nickname.

  2. Click “Install” on this page

    The launcher opens and installs the modpack for Minecraft 1.12–26.3 on Fabric, Forge or NeoForge automatically.

  3. Launch the game

    A profile with it appears in the launcher: click “Play”.

Manually

  1. Download the modpack archive

    In the version list above, pick the file Optimization Sodium-26.3-2.3.mrpack (5 KB).

  2. Import it into a launcher

    A launcher that supports modpacks (Millida Launcher, Prism) takes the archive via “Add modpack”, then “From file”. No need to unpack it yourself.

  3. Allocate memory

    Modpacks need more memory than the plain game: set 4–6 GB in the profile settings.

On a server

  1. Or use the “To hosting” button

    On Millida Hosting, the button at the top of the page uploads the file to your server and restarts it for you.

  2. Players install the same modpack

    To join the server, every player needs the same modpack version.

Versions

With dependencies

MinecraftLoaderFileDateActions
26.3Fabric26.34.9 KB 61
26.3NeoForge26.34.3 KB 2
26.3Fabric26.34.9 KB 5
26.3NeoForge26.34.3 KB
26.3Fabric26.34.8 KB
26.2Fabric26.24.9 KB
1.21.11Fabric1.21.114.9 KB 6
1.21.1Fabric1.21.15.7 KB 4

What it needs to run

FAQ

Which Minecraft versions does Optimization work on?

There are files for 1.12–26.3, 20 versions in total. The newest is 26.3.

Is Optimization for Forge or Fabric?

There are files for Fabric: 1.17–26.3, for Forge: 1.12–1.16.5 and for NeoForge: 26.3.

Where can I download Optimization safely?

On this page: the file Optimization Sodium-26.3-2.3.mrpack (5 KB) is stored on Millida’s server, with no link shorteners. SHA-1 checksum: e4ac0403c2485e3fd74a5f364b2de6a8b030625b.

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Author: wicivoLicense: MIT

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