LightSpeedRe
Reduces your waiting time by loading modpacks significantly faster (currently 48% - 71%)
About this Mod
This is an unofficial high-version (1.20.1+) port of the LightSpeed mod.
It removes the model-baking optimizations that were already implemented in vanilla Minecraft 1.20.1, keeping only the resource-pack cache feature, which speeds up launch times.
(Currently, only ports for Forge 1.20.1 and NeoForge 1.21.1 are planned.)
Since version 1.2.0+, this mod introduces high-concurrency loading to improve startup speed. If you encounter any issues while using this mod, please try disabling the related option in the configuration file.
Available Versions
How to Install LightSpeedRe on Your Client
Install the Mod Loader Locally
Install forge for your local Minecraft version.
Download the Matching File
Choose the LightSpeedRe file for forge and Minecraft 1.21.1.
Install Mod
Place the .jar file in your local .minecraft/mods folder and restart Minecraft. No server-side installation is required.
Compatibility
Mod Loaders
Minecraft Versions
1.21.1, 1.20.1
Server-side
✗ UnsupportedRecommended RAM
4 GB(min. 3 GB)Frequently Asked Questions
Does LightSpeedRe need to be installed on the Minecraft server?
No. Modrinth marks LightSpeedRe as unsupported on the server side. Install it only in your local Minecraft mods folder. Your server can remain unchanged unless the mod page lists an additional dependency.
Which version and loader does LightSpeedRe require?
Use a file for forge, neoforge and your exact Minecraft version. Supported versions include 1.21.1, 1.20.1. Files for different loaders are not interchangeable.
LightSpeedRe is not working – what should I check?
First check the Minecraft version, loader version and required dependencies. Put the .jar file in your local .minecraft/mods folder and remove older duplicates. Because this mod is client-side, adding server RAM will not fix it.
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Minecraft Server for Your Group
LightSpeedRe stays on your client. Host a compatible world for your group.