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lightspeed-kryo

Porting and improving the high version of lightspeed, while changing the serialization library to kryo
by dreamforSh
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16,099 downloads
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Updated Jul 6, 2026
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Performance Utility & QoL

Describes

Porting and improving the high version of lightspeed, while changing the serialization library to kryo

Key Differences

Compared to the original version, this port introduces the following key improvements and features:

  • Replaced Serialization Library: The serialization library has been switched from Java's ser to the more performant Kryo.
  • Expanded Caching: More categories have been added to the cache to accelerate the loading process, including:
    • Recipes
    • Advancements
    • Tags
  • Loading Optimizations: Implemented optimizations for resource pack paths and JSON file loading to reduce startup times.
  • Integrated LazyDFU: This port includes the functionality of LazyDFU to further enhance game startup and loading performance.

Known Issues

You may encounter the following problems while using this version:

  1. KubeJS Compatibility:
  • Problem: The built-in TagLoader feature may cause tag.js scripts written for KubeJS to fail.
  • Solution: This feature can be disabled in the mod's configuration file.
  1. Model Loading Failures:
  • In some cases, certain models may fail to load, resulting in missing textures (the purple and black "checkerboard" pattern).
LightSpeed-1.21.1-neoforge-1.2.7.jar
MC Client, 1.21.1, NeoForge
Release 2026-07-06 Get
lightspeed-1.20.1-forge-1.2.3.jar
MC Client, 1.20.1, Forge, NeoForge
Release 2026-05-31 Get

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