I am on 4.2.2 Lol
Have you treid CM 10.1 RC2/ JB 4.2.2 , "not the nighties builds", these are the Release Candidates "RC" , I have tried a boat load of ROM'S including Jelly Beans, nothing has run like CM 10.1 RC2. http://get.cm/?device=d2vzw&type=RCIt not the official release . Every single 4.2.2 rom I have used had bugs And believe me I have tried them all.. Finally I have landed a rom that looks like Cyanogenmod but there are absolutely NO issues at all .Maybe you should check it out
?? [Rom] Jelly 'Beans' - Build 15 [04/21/13][Aroma][Fully Customizable][VRBMB1][Multi-Carrier]?? - Verizon Galaxy S III Development - RootzWiki