Playing on a MacBook Pro with 16GB RAM, solid state drive, Nvidia 1GB video. I was expecting no performance problems on a game this old, but there's a fair bit of lag.

Some things respond quickly, but clicking on dialog or objects in the game has a moment's delay. Camera is also laggy. Not everything seems laggy, but I think I'm getting slow frame rate.

The graphics settings have a resolution setting, but the list is empty. So I'm at the full res of my cinema display (2560*1440). Is there a way to dial it down? Or some other means to address lag?

TIA.