Uhhh... This thread is about if you are satisfied with Poser 13, Start your own threads about other topics not relating to the topic you are posting to...

The main issue other than the materials thing is Poser 13 Superfly being slow. The image below was rendered in both P12 and P13 using the exact settings in Superfly for both. P12  did this is 31.94 seconds. P13  did it in ( not impressed ) 239.17 seconds and both use the Optix option. This is far from an improvement. As I mentioned before, this is a complex 153 MB scene.