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Smooth Boot (Fabric) Mod für Minecraft 1.19.4

Optimiert die Java-Thread-Einstellungen und verhindert, dass Minecraft deinen Computer beim Laden zum Ruckeln bringt.

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Aktualisiert
Aktualisiert 18.10.2026

Smooth Boot is no longer needed since version 1.19.4!

Because Minecraft has fixed this problem itself.

Smooth Boot - Optimize Minecraft loading performance to be smoother on low end systems and scale better on high end systems.

Available on Fabric and Forge for Minecraft 1.14-1.19.3.

If you have a PC with a older or lower end CPU (ex. CPUs with 8 or less threads), you may have noticed that Minecraft takes up 100% of the CPU when loading into the title screen, causing cursor stutter and makes multitasking painfully difficult. Smooth Boot solves this problem completely, and loading should be much smoother and potentially faster as well.

Features

  • Change amount of threads used for loading
  • Change priority of threads used by Minecraft
  • Auto config menu to change config from in game

How the mod works

Minecraft uses executors to run multithreaded tasks. The problem is that the tasks that are ran during loading are quite heavy on the CPU, so it leads to 100% CPU usage. And, some of the tasks do not necessarily benefit from multithreading. Smooth Boot fixes these problems by change the parameters of the executors, including the number of threads they use and the priority of each thread.

For more information, please read the Smooth Boot wiki

Compatibility

The mod should be compatible with all mods including Optifine. However, it's worth noting that the mod uses mixin overwrites on some methods used for loading the game. If you run into incompatibility issues, please leave a comment.

Installation von Smooth Boot (Fabric)

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 mod for Minecraft 1.17–1.19.4 on Fabric or Quilt automatically.

  3. Launch the game

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

Manually

  1. Install Fabric or Quilt

    The loader must match the game version of the mod file, for example Minecraft 1.19.4. After installing it, a separate profile appears in your launcher.

  2. Download the file for your version

    In the version list above, pick the file smoothboot-fabric-1.19.4-1.7.0.jar (87 KB) for your game version and loader.

  3. Put it in the mods folder

    The folder is inside .minecraft (Windows: %appdata%\.minecraft\mods). If it does not exist, create it.

  4. Launch the loader profile

    Open “Mods” in the main menu: Smooth Boot (Fabric) should be in the list.

Minecraft 1.19.4 runs on Java 17: with a different Java version the game may close right after launch.

Versionen

Mit Abhängigkeiten

MinecraftLoaderDateiDatumAktionen
1.19.4Fabric, Quiltsmoothboot-fabric-1.19.4-1.7.0.jar86.6 KB
1.17Fabricsmoothboot-fabric-21w06a-1.4.0.jar85.5 KB

FAQ

Which Minecraft versions does Smooth Boot (Fabric) work on?

There are files for 1.19.4, 1.17. The newest is 1.19.4.

Is Smooth Boot (Fabric) for Forge or Fabric?

There are files for Fabric: 1.17–1.19.4 and for Quilt: 1.19.4. There are no files for Forge or NeoForge: a mod for another loader will not start.

Does Smooth Boot (Fabric) need other mods?

The author lists no required dependencies: the Fabric or Quilt loader is enough.

Which Java does Smooth Boot (Fabric) need?

Minecraft 1.19.4 runs on Java 17. If the game closes right after launch, the usual cause is the wrong Java version in the profile settings.

Where can I download Smooth Boot (Fabric) safely?

On this page: the file smoothboot-fabric-1.19.4-1.7.0.jar (87 KB) is stored on Millida’s server, with no link shorteners. SHA-1 checksum: 295dd6dea9763a72ecf77682534d81b0129474fe.

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