High end power with Poser?
Not too many options there, really... unfortunately. I've brought that up several times but tend to get accused of complaining for the sake of complaining, or even worse, trolling.
Poser Commandments:
#1: Respect and honor thy Poser above all.
#2: Seek not ye of new features, compare not existing features of others, else bond thyself to others and be scarce in the land of Poser.

;-)

You can set the render to as many cores as you have and tweak a little in the render options - even assign Poser as an app to be dealt with independently via the Nvidia Control panel, far as OGL is concerned, but that's pretty much it, far as I can tell. Poser is waaaayyyy behind the curve in taking advantage of higher end PC abilities.