I tested GPUView to check Nvidia limiter and I noticed it's queueing frames like it was running on Windowed Mode. Then I reverted the driver to the 436 series and noticed that this still happens. Using CSGO without any bottleneck from CPU or GPU, no vsync and framelimited to a a very stable fps I have tried without any overlay, without fullscreen optimization, with all low latency modes, with -d3d9ex and -nod3d9ex, game-mode on/off, etc. I do notice the alt-tab really fast between resolutions meaning something is going on. My OSD reports native resolution even with video scaling. No clue. Have tried a few months ago and had no queue at all while playing and DWM totally bypassed. Will I need to rollback to other windows 10 version or there is a fix?