Sword Optimizer

Processes sword swings instantly on your screen instead of waiting for the server, removing combat lag on high ping.

655 Downloads

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About this Mod

Sword Optimizer

Sword Optimizer is a lightweight Minecraft mod that makes sword combat feel smoother and more responsive by processing sword swings instantly on the client side instead of waiting for the server response.

The mod keeps the vanilla combat feel while reducing the delay between clicking and seeing your attack.

Features

Instant sword swing processing
Smoother combat feel
Vanilla-friendly
Lightweight and optimized
Multiplayer compatible

Status

First public release — still WIP, but fully functional.

Requirements

Java 21 or Higher
Fabric Loader (forge coming soon!)
Minecraft 1.21.9-1.21.11
YetAnotherConfigLib v3
Mod Menu (optional, only if you want to change settings)

Available Versions

Sword Optimizer v.0.5.0-betarelease

MC 1.21.9, 1.21.10, 1.21.11fabric

May 24, 2026

How to Install Sword Optimizer on Your Server

Order Server

Order a Minecraft Java server with at least 3 GB RAM (4 GB recommended).

Set fabric Loader

In the panel under "Egg", select the fabric loader and matching Minecraft version (1.21.11).

Install Mod

Open the mod browser in the dashboard and search for "Sword Optimizer". Click "Install" – done! Alternatively, upload the .jar via SFTP to the /mods folder.

Compatibility

Mod Loaders

fabric

Minecraft Versions

1.21.11, 1.21.10, 1.21.9

Server-side

✗ Unsupported

Recommended RAM

4 GB(min. 3 GB)

Frequently Asked Questions

Sword Optimizer server crashes on startup – what to do?

Most common cause: wrong fabric version or insufficient RAM. Check the server log (latest.log) for "OutOfMemoryError" or "Mixin" errors. With Mado Hosting: ensure at least 3 GB RAM is allocated and the loader matches the mod version (1.21.11). You can switch loaders with one click in the panel.

Is Sword Optimizer compatible with fabric?

Sword Optimizer officially supports fabric for Minecraft 1.21.11, 1.21.10, 1.21.9. The Mado dashboard automatically detects incompatible loader combinations.

Server lagging with Sword Optimizer – how to optimize performance?

Recommended RAM: 4 GB (per 8 players). Use /spark profiler to check if Sword Optimizer consumes the most tick time. Common fixes: reduce server view-distance to 8-10, install "performant" or "starlight" as supplementary mods on Forge. With Mado Hosting, your server runs on NVMe SSDs with dedicated CPU cores for minimal latency.