Helping thread :)

[doofoo24]

Bulat you right using 7z
[External compressor:lzma2]
header = 0
packcmd = 7z a -txz -an -mcrc=0 -m1=lzma2:d128m:fb=273:mf=bt4:mc=10000:lc=4:lp=0 -mmt=8 -mx9 -si -so <stdin> <stdout>
unpackcmd = 7z x -txz -an -y -si -so <stdin> <stdout>

with freearc is almost the same as using lzma in freearc and the built-in lzma give better ratio 0.5% to 1%.
but i have other question why ZSTD IS WORST THAN 4X4:LZMA in decompression speed i have I7 6700K 4.7GH OVERCLOCK WITH SSD NVME
4x4:lzma decompress around 1gb/ sec but use more memory and cpu to the full while zstd only use 128mb of memory but limit to 400 to 500 mb /sec.
i find it odd ?