My RAZR M is possessed. It's lagging when you type. The screen kind of stutters when you switch between screens. All of the regular colors are going crazy. They're going to primary colors, but it's not a permanent thing. Just every now and then. It'll vibrate that there's a notification, even when there's nothing going on. Again, it's not constant. But it's often enough to make me nuts.
Sounds like a hard reset is in order. If that doesn't exorcise the demons, put it in safe mode and see if it settles down. If it does, then systematically start checking your apps for resource conflicts. Also could be a virus. There is lots of Android malware out there.
I don't know what's going on; but since the update my previously PERFECT phone (dream phone) has had the following issues:
1) All MP3's zapped into a folder called lost.dir and renamed to bizarre names with no extension
2) Battery life stinking (could go through a whole day at work and use < 30% battery).
3) Screen lag is very, very noticable
4) Opening apps is like running windows 8 on a 286...AKA SLOW as heck.
What's going on with our phones????? I am just about ready to get an Apple...where Apple sends out the update, Not Verizon. Yes, while Apple has problems on occasion, they are Apple issues, not VZ tampering with stuff and screwing it up.