[Fyron]

"Do you know the effects of tweaking the "Combat Iterations Per Frame" setting( in settings.txt )?"

I would imagine it has to do with the compression of combat logs, not the actual combat processing.

"More of a reason to go back to a turn based combat system. Or even a WEGO system like Combat Mission."

Considering that the actual computation of real time combat is more or less identical to turn based (just with a higher order of turn numbers), no, not really.