I think the signal and the CPU/memory stress are two different things.
On a side note has anyone tried this kennel? http://www.htcmania....ad.php?t=791684
Kernel chil360 v0.31 17/03/2014 [SlimKat Oficial Kernel (también para algunas ROMs CM11]
i tried the kernel and the com.android.phone keeps crashing on latest nightly