Slow while in vm

[WilliamN1]

I have a (2015) Macbook Pro 13" 2.9ghz, 16g ram. I am currently running Windows 10 in Parallels with visual studio 2015 and sql server management studio. When i am running all of this on the mac without any external monitors then it seems to run ok. Not fast but not slow either. When i plug in 2 27" monitors to the Macbook then the vm slows way down. I have noticed that the Mac OS still runs ok but the windows is utilizing 99% cpu while i am trying to work. I have changed the settings many times and have tried all sorts of things but nothing seems to help. Do you think its possible that the screens are causing the cpu to max out in the vm? If anyone has experienced this or has a fix please let me know.

Thanks

 

[PaulChristopher@Parallels]

Hello William, how long have you been facing this issue? Did you update Parallels Desktop to the latest build? also, please create a Problem Report for the virtual machine as described here http://kb.parallels.com/en/9058 and provide us with the Problem Report ID.

 

[WilliamN1]

I have had this issue for about 2 months but that is as long as I have been using the dual 27" monitors. Yes i have the latest build. I will create a problem report.

 

[Arunn]

windows is utilizing 99% cpu while i am trying to work.

Please try these steps and check if it helps improving your Windows performance.