Currently I have a Verizon Galaxy S4 running android 4.4.2 and build number KOT49H.I545VRUFNC5 (NC5). It is not rooted. I like the phone, but the battery life isn't great and I find the front and back camera lag occasionally (especially with snapchat).
The only apps I use are: settings, phone, contacts, messaging, internet, music, gallery, camera, email, play store, alarms, calendar, calculator, svoice, soundcloud, twitter, snapchat, instagram, fb, card wars (yes really), td bank (us), and maps
I'm planning to use this guide to root my phone: http://forum.xda-developers.com/show....php?t=2769480
What rom offers the best battery life? Do I even need to root to install a custom rom?
How can I fix the camera lag (something with touchwiz?) ?
What would be the best way to remove every single other app besides the one I have listed above?
I know upon installing a custom rom I'll void my warranty (which can be covered up), but will rooting void my warranty as well?
Thanks in advance.