Knowledgebase:
MacOS App Nap
Posted by Jiaz, Last modified by raztoki raztoki on 02 May 2015 10:39 AM

Read this how to disable App Nap:

 

http://www.tips-and-tricks-in-mavericks.com/disable-app-nap-on-a-per-app-basis-in-os-x-mavericks/

or

Originally Posted by Apple
Note:*If you experience problems with App Nap, you can temporarily disable it for a particular process by typing:

defaults write <app domain name> NSAppSleepDisabled -bool YES
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