set processor usage for certain apps?

Hi everyone, I hope someone can help with this question.....is there a way to change OS settings so that certain apps only use a certain amount of cpu cores?? Like say, on a quad core device, I want to set an app to only use 2 cores, allowing the other 2 to stay free for other tasks. I mainly want to use this for the Play Store when it updates apps. When an app is being installed, my Note 2 becomes laggy and damn near unusable for 5-10 seconds until it is completely installed. Any help is greatly appreciated and would make whoever helps me out my hero of the week!

If someone has any other suggestions to cut down on the installation lag I'm all ears. Thanks