The devs already know that a bump map coming in from Daz (or anywhere, really) needs to be turned down (and on the "Import All Textures" routine they have a file where they save the bump strength settings, among other things, and by default it's at 15 or so). For the ini file that loads in avatar textures from Daz characters, a bump map comes in at 100, which is WAY too hot (and so you need to adjust them all).

What it should do (since the "Load all Textures" respects that settings file) is respect the settings there as well, turning down any Bump map to whatever that file is set for.

(Note: Normal maps are fine -- this is only for a b/w bump map that is coming in hot).