Originally Posted by mbc663
Sounds like it might be thermal throttling. does your phone get really hot? original battery?
I have a dbrand skin + Spigen rubber case. Sometimes when I'm out on a hot day the screen is indeed hot but this rarely happens. The issue with "25% CPU applied at boot" is an issue I've seen in other Franco Kernel threads on XDA. I thought that reverting to the stock kernel would fix this but unfortunately it's still slow. It is the original battery.
Also when I installed Franco kernel, my phone would often shut down when the battery was 20% or lower (rarely survived when 15% and under). This only happened once many months ago with the stock kernel. Since reverting back to the stock kernel, the issue hasn't occurred yet. (battery life did suffer but was expected)