I have a mid-2011 iMac which could AirPlay video beautifully in and out of iTunes to my Apple TV before Mavericks. Now that I've installed OS X Mavericks 10.9 (13A603) I have latency issues. The audio plays fine but video skips a lot, especially when I'm mirroring my display with AirPlay. I tried a wired and wireless connect and both have issues. Is anyone else experiencing this or have a workaround?