Your settings is good, and my pc is noob XD
DLZ shoes that it's copying data in the console window, then I saw process hacker which says it's 7mbps, probably it includes scanning speed too.
Anyways, lolz is still slow (as I said, even my settings was lower than you) and in the lowest settings it asks for 14h, obviously because of my celeron processor
However, I finished packing the game, only rpf files(except x64d.rpf and mp dlcs), pzlib:c128mb+srep:m2f+lzt:32, result = 20.7G.
For a small test your settings gave 2x speed than dlz and better ratio