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LightSpeedRe - Launch optimizations

Reduces your waiting time by loading modpacks significantly faster (currently 48% - 71%)
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LightSpeedRe 2.0.2 (forge 1.20.1)

File namelightspeed-1.20.1-2.0.2.jar
Uploader
kltytonkltyton
Uploaded
Oct 4, 2026
Downloads
87
Size
824.4 KB
Mod Loaders
Forge
File ID
9054229
Type
R
Release
Supported game versions
  • 1.20.1

Curse Maven Snippet

Forge

implementation fg.deobf("curse.maven:lightspeedre-launch-optimizations-1388941:9054229")

Learn more about Curse Maven

What's new

LightSpeedRe 2.0.2

  • Fix startup image CRC validation so damaged cached entries are discarded and read again from their original source.
  • Preserve valid scan and resource cache entries when startup exits before loading completes.
  • Reuse validated JAR resource indexes and reduce repeated resource membership and byte lookups.
  • Finish the initial loading overlay promptly after successful resource reload and mod loading. Title-ready logging now also waits for the overlay to be removed.
  • Fix NeoForge shared resource-cache persistence so each shared per-mod cache is saved centrally.
  • Forge: reduce repeated ObjectHolder traversal while preserving callback order and handling unknown callbacks through the original path.
  • Forge: package the current generated Mixin refmap and verify it matches the compiler output, preserving the initial reload injection mapping.

The release includes its bootstrap Agent. Existing cache options and their defaults remain unchanged. Experimental construction scheduling is not included. Startup time depends on the modpack, Java, heap and cache state; no fixed startup time or measured percentage improvement is claimed.

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