@darkwolves
use this setting.
lolz:dt1:dtp1:dto1:dtm1:dtw1:dtd1:mtt0:mt#d64m:tt4
h14:fba4096:mc1023:bc8:blr8:bm8
replace # with number of threads u want.
every thread will use 700mb of ram during compression. and during decompression (around 100mb).
since we have used mtt0(ratio will not be affterted because of multithreading) number of threads during decompression will be equal to number of threads during compression.