Parallels 10 slow like nothing else...

I have been running parallels for a long time now on my mac, I think since version 6 or so.
However, after installing v10 i'ts no fun anymore, Windows (and other guest OS's) are SLOW, I mean it's like working in syrup.
It was running fine in v9, I've tried most settings in v10 without much success.

I have it on several mac's and even though it's not as bad on all of them (different hardware on them as well) I have to say it seems that v10 just is not working well for me.

Time to downgrade? Other suggestions?

Hardware wise I'm good enough for what I need and much more (i7 proc, 16GB ram)

 

Hello Fredrik_Melin,

Increase the RAM of your Virtual Machine to 4GB or more as you have 16GB on your Mac. To increase the RAM of your Virtual Machine, follow the steps provided in this link: http://kb.parallels.com/113649

Also please follow the steps as suggested in this article: http://kb.parallels.com/en/112091 to improve Virtual Machine performance on your Mac.

If the issue persists, please feel free to reach us anytime. We are here to help you.

 

I already run 6gb RAM for the virtual machine.

yesterday I downgraded to v9 and it's way faster again.