Since you don't seem to want to post render settings, I will. My GPU is one generation older than yours, and far slower than yours in Optix.........

Intel denoise is turned on in the post effects, and that matters if you want speed... It took 7 seconds to render an 1080 x 1800 frame. It will do 1800 x 3000 in less than 12 seconds, on a slower GPU than you have.... Transparencies will slow down any render, so results may vary depending on the hair you use and the shader used on the hair. I strongly suggest that you learn the Cycles shaders and materials. And also learn how to terminate to transparent on hair shaders if it runs out of bounces while rendering animations with hair that has lots of transparency layers....

Superfly in P13 is very fast.... Firefly cant hold a candle to it, and you will use for more KWatts rendering on the cpu.... My entire system did not exceed 320 watts on this render..... And again, it took 7 seconds a frame.....

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