I get great fps everywhere but here it bogs down to 5 fps, even on lowest graphic settings. It has something to do with the sky somehow, because when I zoom out to max camera angle and point the camera straight down, I get all the fps back. This has been like this since launch.
I have iMac (Retina 5K, 27-inch, 2019)
3 GHz 6-Core Intel Core i5
16 GB 2400 MHz DDR4
Radeon Pro 570X 4 GB graphics