My device: 9900K+2080ti
Whenever I take off from Shanghai airport (ZSSS or ZSPD), the FPS is reduced from more than 40 to only 20. Through GPU-Z, it is found that when on the ground, the gpu clock has 2000MHz, but after takeoff, the gpu clock drops to only 1300MHz. So the FPS will suddenly decrease. But after landing at ZSPD or ZSSS, the gpu clock returned to normal. Why?
I have tested other airports and have not found this problem yet. This happens only in airports in the Shanghai area.
Turn on DevMode and display FPS counter, it will tell you where your bottle neck is during those FPS drops. I also have your exact same hardware.
So if you’re seeing “Limited by Main Thread” in the FPS counter display, Follow this topic. I made the changes as advised here, and I got smooth FPS now.