This is the primary "win" for RG Catalyst. Because they don't compress files to the extreme "limit" of mathematics, your PC doesn't have to work as hard to unpack them. If FitGirl takes 2 hours to install a game, RG Catalyst might do it in 45 minutes.
RG Catalyst has cracked the code. Using multi-threaded decompression (taking full advantage of modern 6-core and 8-core CPUs), their repacks install than other repacks of the same size. For example, while a FitGirl repack of a 100GB game might take 90 minutes to install on a mid-range PC, the RG Catalyst version takes roughly 30 minutes, with only a 5GB difference in total size. repack by rg catalyst better
: R.G. Catalyst has been largely inactive for several years. Their official forum, avg.club , went down, and no official return has been verified. This is the primary "win" for RG Catalyst