Is this normal? There's always 470-500+ mb in use all the time. I can't turn off certain apps like Verizon Navigator (which I don't even use) or NFL mobile (not a fan of football). I've got maybe 5 apps total right now and they're set to turn off after 2 min of screen shutting off. They're always off but these certain apps just don't close... what the heck lol... Is it bloatware?