So I've been on skyfall Rom since I got my m8. But I'm getting kinda bored. What Rom out there is giving you guys the best battery life and best performance?
ROM is the basically for speed of the Gadgets (Mobile/Desktop). HTC One (M8) has a good ROM memory. As you said you are troubling with battery life. Internet surfing kills battery very fast as compare of other application. SO, I can advise you that whenever you does not use internet please off the mobile data.
XDA Developers was founded by developers, for developers. It is now a valuable resource for people who want to make the most of their mobile devices, from customizing the look and feel to adding new functionality. Are you a developer?