4.2 has been a real disappointment to me compared to 4.1. Since my update, the phone lags on input more, apps crash frequently, and restarts must happen more of

4.2 has been a real disappointment to me compared to 4.1. Since my update, the phone lags on input more, apps crash frequently, and restarts must happen more often. Just today, I had Google Voice slow down, crash, restart, and crash again. Then, after I took a picture, the whole phone locked up. It seems that 4.2 wasn't ready for prime time, but was pushed out for the Nexus 4 release.