It's a shot in the dark, but do you have "Enhance multilayer transparency" checked on here?

Trying to use that option has made my Poser slow to impossible use. I do remember my GPU is similar to yours - could be something like that.

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Feel free to call me Ohki!

Poser Pro 11, Poser 12 and Poser 13, Windows 10, Superfly junkie. My units are milimeters.

Persephone (the computer): AMD Ryzen 9 5900x, RTX 3070 GPU, 96gb ram.