I simply got Parallels Desktop 12 for my Macbook Pro to be able to use regristy editor (regedit) on a minecraft. It basically just improves latency and makes your connection better. I get 250-600fps without Parallels & I get around 250-350fps on the game through Parallels, which is not a problem at all, the problem I have is that the screen is producing what looks like 50hz (50fps) or 40Hz when I try to play the game or just moving my mouse around on the desktop. I checked my Device Manager and my "Parallels Display Adapter (WDDM)" is up to date along with my Generic Non-PnP Monitor. I had an option earlier yesterday for my screen to produce 65Hz in my "Display Adapter Properties" and then it changed for some reason after I opened Action (recording software). If anyone can help me either get the 65Hz option to show up again or just help my output be smooth, that'd be great. Thanks.