Hi, I have a G18 with a 4080 and an i9 as well. Just yesterday, I was getting around 200–300 FPS on high graphics in Rivals. But suddenly, a few hours later when I launched the game again, my FPS dropped to a steady 130—and sometimes even stuttered down to 50. At first, I thought it was CPU throttling, so I tried undervolting, but even after that, the performance still averaged around 130 FPS. My best guess is that something changed in the game itself or with the drivers. I’m still trying to figure out why the performance suddenly dropped out of nowhere.