I've played a few games with the final release (or at least the pre-day-0 version that's available now). The first thing I noticed is that the game is really slow compared to the last beta. It doesn't seem like a video problem: the video is totally smooth when I move the camera around, and all the action is visually smooth (not choppy) -- it's just that the characters on screen are moving about half the speed they did in the beta. In a possibly related note, the scoreboard shows my sim speed as being "-2". Once in a while the game speeds up to what I would consider "normal speed" or even faster for a few seconds, then goes back to being slow again.
I turned all the video and sound settings down to the lowest levels, just to be safe, and didn't see an improvement. In case it matters, the video card on this laptop is a GeForce 8600M, according to the label on the front, and the CPU is a 2.2 GHz Core Duo, and it has 2GB of RAM. It's running the installation of Vista that came preinstalled.