LZ4 offers compression speeds of roughly 400–500 MB/s per core and decompression speeds that often saturate RAM bandwidth (multiple GB/s).
The mod allows you to swap hash algorithms (XXH32, XXH64) to match the high speed of the compression, preventing the checksum process from becoming a bottleneck. Multithreading: modded 7zip for lz4
It has extremely fast decompression speeds (often limited only by your drive's hardware). LZ4 offers compression speeds of roughly 400–500 MB/s