For me,lzturbo
eats a hugh amount of RAM at de/compression.
It has no percentage display
Afaik its source stolen from Bulat Z., author of Freearc....
Summa summarum,its based on Bulat's Tornado.
Its better if you stick with it.
(supports stdin/out,decomp speed ~70-80 mB/s,with nearly LZMA ratio.