The reason I found my results strange is that I used premade Blender benchmarks to test the new Video card.  In that scenario, there is no comparison. I also usually render in 4K resolution, the image I uploaded was a reduced res screen snip.

Victor benchmark

CPU  7:38 min

3090 cuda  2:20 min

3090 optix 57 secs

I expected same in Poser. I tried to use optix, but the preload time before it even started took longer than the 33 sec CPU render time.

I assume the Superfly settings are wrong.  They don't recommend branched path tracing with GPU, but if I don't use it I need a ton of rays to eliminate the noise.

Frankly in many cases I prefer the look of the Firefly render because it is noise free. I will use your posted setting of Superfly and see if the 3090 will be faster than the I9 CPU and report back