Energy is also a bit of a special case, so 0.95 - 0.98 should be sufficient for most simulations. Your solution may well need to run for many more iterations: hence that's the one UR factor that's usually best left alone.
Coming to the lack of convergence. Is it failing to converge or diverging? For the former, how are the monitors behaving?
You are navigating away from the AIS Discovery experience