The textures slots are a big problem. It is not only figures which have a lot of textures, but lots of sets have separate props or figures with each one or more texture maps. A number of these can be replaced by procedural material, but not all of them.
I hope that the plugin will provide a way to replace the stone/rock/brick/ground material via a simple (batch) method, since that would cover a whole lot of them

The Poser plugin will go a long way to addressing this.  You can copy and paste whole material trees, and export/import materials to disk.  On the todo list is to export/import all materials to disk for a specific figure/prop.
Another thing which surprised me is that GPU usage has a big impact on the overal UI of the entire system. If you render other apps will be quite sluggish in their UI. 

AS per papertigers comment, or use you on-board video as your display adapter.

Creator of PoserPhysics
Creator of OctaneRender for Poser
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