Yep - another S6A Knox user here.
If i lose data connection for a bit, i feel-it as the phone heats up like mad while sucking the battery dry.
If i lose the data connection for too long, it will self-format (and destroy all the data/photos/application settings on the phone)
And when the data connection is working fine, the fscking antivirus randomly kicks in and slows everything down. I had battery life varying from 3 full days to 3 hours.
There's no way to get consistent functionality from a secured Samsung phone. While on iPhone everything works as it should.
Linux kernel on Android vs MACH Darwin microkernel on iOS.