I've been playing some Windows games on Parallels via Steam and I'm finding performance is absolutely all over the place. Some games run perfectly, others have some issues, and some just crash. On my Windows PC or in Boot Camp I can run Dishonored perfectly - 1440p with everything on max at 60fps. In parallels though it appears initially to be running at the same speed, but very quickly starts dropping frames in a major way. This isn't the occasional skipped frame, it's a full pause for several frames, then it's back to 60fps, then another several frame pause. These pauses happen a few times every second, and it doesn't matter what I do to the graphics settings, even on Low it still drops frames like crazy. Not sure if there's anything that can be done to fix this, other than hope the Parallels dev team improve Direct X performance...