I'm running a Mac Pro (late 2008) and Windows 7 in "office productivity" mode. Window redraws in Coherence mode was no issue prior - but now, it's very, very slow (overlapping white screens that redraw only with a mouseover.) Things work as expected in non-coherence mode. I've tried setting all the optimization settings to default, with no success.
Hello ArlissR, Please generate a Problem Report ID as suggested at http://kb.parallels.com/9058 and provide us the Problem Report ID number here, so we can check it for you.
All process from boot to work is very slow. Before update parallels, windows run in 20s. Now in 1-2 minute. I have 3D acceleration on, DirectX 10 with vertical synchronization. Microsoft Office 2013 open in 1 minutes. Moving cursor UP and DOWN in app was very slow. Report ID when open OFFICE 2013. (53102397). When moving mouse in app windows was a bit quicker. Thanks, Roman
I am having the exact same issue and it affects both my Windows 8.1 Guest OS and Windows 7 Pro Guest OS. This happened after the latest 10.1.1 update. It was so bad I tried to load the older version again, but whatever has happened to the VM's has made them painfully slow to the point of being unuseable. My Guest OS's run on a High Performance SSD and when I moved to this previous to this upgrade, they ran very fast. I have already tested turning off and back on 3D settings with no change in performance. I will submit a problem report.