I just bought my first 4k television yesterday, and I am having a strange problem. Whenever I change my desktop resolution to 3840x2160 (my T.V.'s Resolution) all games whether they are PC games or games running on emulators will only run at 30fps. But if I set the desktop resolution back down to 1280x720 everything runs at full speed. Everything else on the PC (like videos and standard programs) run great when the desktop resolution is set to 3840x2160, only games are affected by the resolution change. My question is this, if I am not changing any of the emulators or games graphics settings from what I have always used then why does moving my desktop resolution up affect gaming the way it does? I am only asking for curiosity because it makes no sense to me. I would appreciate any answer anyone can give me on this subject.