I use the four-finger drag gesture on a Magic Trackpad to switch between OS X and Windows 7 x64 desktops. (I have two monitors, but I only have my Windows 7 VM set up for one screen.) Prior to Yosemite, switching between desktops used to be perfectly silky smooth. But at some point in the Yosemite beta cycle, it became slow, herky-jerky, and not even very reliable - often, the wipe stops in mid-transition, leaving half of one desktop onscreen along with half of the other. I had hoped that Parallels 10 would solve this issue, but it's no better than Parallels 9 in this regard. Is this something that other people are experiencing, and is there anything that can be done to improve the situation? I know it sounds like a minor issue, but it's really very annoying and has really reduced my enjoyment of Parallels.
