On the cusp...

[kimmitt]

Cainehill's got it on both issues; I cranked down my graphics settings, and turn processing massively improved. They shouldn't be related. My understanding is that this is the sort of thing which is commonly fixed in patches; optimization issues often don't come out in playtesting.

Certainly, Civ4 was unplayable on most machines before its patches. I'm hoping Dom3 follows the same pattern -- slow on release, followed by patches which take advantage of player notation of bottlenecks.