I have a Late 2012 iMac with a 3TB Fusion Drive and have had numerous issues trying to install Boot Camp, so I have been using Parallels 10 for my Windows gaming (Windows 7). I am considering upgrading to Parallels 12 and would like to know if there is any noticeable improvement in gaming performance between the two. I don't really have much need of the new/additional features, and am making my upgrade decision based on gaming performance. Any insight from anyone who has used both would be greatly appreciated, thanks!