Here is a screenshot of a game almost 50 minutes in. This is all the enemy commander had done in that time. Something seems wrong. (normal AI at 1.0) I have not attacked his base at all. In previous releases, the AI would be interplanetary by now, and even have some nukes sent my way.
One thing I notice, there aren't many metal spots on that planet... Perhaps that is stopping him expanding? Also with regard to settings- I think maybe they've been tweaking the 'normal' AI difficulty down as many new players were finding the previous 'normal' AI far too difficult?