Hi, first post and wanted to say thank you for all the great info on this site, very awesome! I have a minor issue right now, not even, more a curiosity. I tested this in multiple games and with different drivers: For example in Apex legends, on a random spot inside shooting range I will get 260fps stable. I tab out of the game and back in, suddenly I get 290fps. This effect lasts 10-20 seconds after that I return to baseline 260fps. I can repeat and replicate this as often as I want and on any spot in the shooting range, doesn't matter. I searched and found this very old thread https://forums.guru3d.com/threads/what-is-alt-tab-problem-and-what-does-it-do.240317/ Apparantly back then there was a driver issue with Vram management, if I read that right. I checked my memory usage with MSI afterburner but it's constant and at around 1300 mb. My specs: 1080ti Xeon E3-1230 16gb DDR3 Windows 10, 1909 Ingame: Everything ultra low, no vsync, no fps cap etc.; turned off full screen optimizations. Any ideas what's happening or any tests I could do? If you could try this out and tell me if you get the same effect(which game doesn't matter) that would be awesome!