My Maxx HD has over 300+ apps and 5 home screens and 3 widgets. Nothing fancy. But mine is fairly snappy. I'd recommend to use the app switcher to close apps by swiping them to the left or right. It will shut them down. If you are using a music player like Pandora it won't shut that down even if you swipe it closed. Just so you know. That should help. Make sure you keep the open apps at the same time to a minimum.