mobile

This is a problem that has plagued every Android device I've owned. Whenever I turn the screen on to do something, the CPU usage shoots way up. These insundry background processes don't seem to be run using "nice" or "cpulimit," and so even with four cores on the Nexus 7, the GUI lags quite a bit. If there's any time apps should NOT run background processes, it's the moment that the user wakes up the device.

Has anyone addressed this problem on their tablet? Which system event would be relevant, if I wanted to use an app like "autostarts" to try and fix this?