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LightSpeedRe - Launch optimizations

Reduces your waiting time by loading modpacks significantly faster (currently 48% - 71%)
by kltyton
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2,590,379 downloads
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Updated Jul 6, 2026
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Performance Utility & QoL

This is a 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.

lightspeed-1.21.1-1.2.0hotfix3.jar
MC Client, 1.21.1, NeoForge
Release 2026-07-03 Get
lightspeed-1.20.1-1.2.0hotfix2.jar
MC Client, 1.20.1, Forge
Release 2026-07-02 Get

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