Um... have you actually tried this? As a programmer I know that each poly will have to be lit by each light even in preview mode. My experience with poser is past like 4 lights or so your performance, even in preview mode goes down. That is a heck of a lot of light calculations and even more with shader nodes. What do you have like a 100 lights there? That's at least 100 dot products per vertex to calc lighting. Plus shader nodes that rely on light direction etc can even do dot products at pixel resolution per light. Well I hope it works but I don't think poser makes any distinction between static and dynamic lighting.