I render using Superfly and use the presets in the render settings to pick a preset that gives me a render speed / quality balance that I am happy with.  In some cases I accept the loss of quality for more speed if I think I can denoise the final render to an acceptable level.  There are presets for both CPU and GPU at different quality levels, of course all the presets can be tweaked but they are a good default to work from if you are new to Poser 12 and Superfly.

 

 

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.