"Must be Vicki4. She rocks- basically everything, even my PC."

No surprise. DAZ crammed so much stuff into her cr2 to make her newbie and merchant "friendly" that she hardly can walk under her own weight.

:lol: :lol: :lol:

And of course it has absolutely nothing to do with texture size.
Sidneys default textures are 3541x4000 and 4000x3500, while V4's are 512x512, 512x512 and 512x512.
And the difference in performance is easily noticeable even then.

While texture size IS important, mesh resolution and morphs are a lot more important.
(And Sidney even has a higher resolution mesh than V4)