So, I've had a lot of trouble with unexplained lag in NYC, so I uninstalled it. I reinstalled it into Add-ons today, and whaddya know, with a little less than half draw distance, it runs like a charm! This might be in part of Apple releasing a fan firmware update (which was much needed), and that I've done a little tweaking of the hardware settings.
Anyway, I'm happy now, because I can make races and stuff in NYC now.
...I still think Ghost's interior modeling method has too many extra polygons... :P