I have to say I am impressed so far, the trick with Superfly appears to be lower the samples, and increase the bucket size and leave Progressive Refinement ticked.  May not work in all cases but using the high GPU preset gives me samples at 25 (in Poser 12 it was 50), Adaptive Sampling threshold at 0.001 (in Poser 12 it was 0.002).  I have then increased the bucket size to 2048, in Poser 12 I had 128.  The renders just flies and appears to between 2 and 4 times fast with the same quality I used to get.  Poser also appears to let the render go a lot faster than Poser 12 did.

I also like the Launcher so you can start in a recent scene, pre prepared scene or empty scene and so on, I think that is a nice touch,

 

 

I use Poser 13 on Windows 11 - For Scene set up I use a Geekcom A5 -  Ryzen 9 5900HX, with 64 gig ram and 3 TB  storage, mini PC with final rendering done on normal sized desktop using an AMD Ryzen Threadipper 1950X CPU, Corsair Hydro H100i CPU cooler, 3XS EVGA GTX 1080i SC with 11g Ram, 4 X 16gig Corsair DDR4 Ram and a Corsair RM 100 PSU .   The desktop is in a remote location with rendering done via Queue Manager which gives me a clearer desktop and quieter computer room.