Yes, Aerosoft US Cities is easy on frames, no worse than MegaSceneryX or FSDT McCarran. I've flown with it at night with bloom lights, and I even have UTUSA lights and it all looks great together. It looks more realist during sunset with everything put together. Since I'm trying to finalize my trip around the world, which I'm almost done, my next leg of the trip will be taking me from Las Vegas to Chicago. My next video will be of that leg, and I'm going to take off at dusk so that you can see what I mean.