Bye?Pregen!
Modby moepus
Reduce MSPT spikes and server freezes caused by world generation.
Type
Mod
CurseForge Downloads
88,533
CurseForge ID
1567378
Last Updated
Jul 27, 2026
Description
This mod optimizes world-generation block placement, post-processing, and the cascading chunk-loading requests that post-processing can trigger. Combined with reduced memory allocations, it significantly lowers the performance cost of terrain generation and exploration.
BACKUP YOUR SAVE DATA BEFROE USE
Features
- Lower MSPT during chunk generation
- Less server freezing during chunk generation
- Fewer cascading chunk-request
- Reduced memory allocation overhead
Compatibility:
Automatically disables C2ME's FluidPostProcessingFilter option
Test Environment
- Mods: C2ME + Lithium
- Render Distance: 43 chunks
- Memory: 12 GB RAM
Before:

After:

Results
- Average tick time reduced from 19 ms to 11 ms
- Maximum tick time reduced from 115 ms to 48 ms
- Significantly fewer MSPT spikes during terrain generation
Detailed Compare with Bye?Pregen 1.0.4



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