Here's a video of the single player London sightseeing mission. The settings are low except the a/c model. This is a huge improvement, because a few days ago I wouldn't have been able to get 5 fps in this scenario, and now I can fly around relatively smoothly, thanks to the nossao and the lotex mod.
I clipped the wing flying under that last bridge at the end and sheared off the wingtip. The plane flew on, but I could feel the effect of the missing wingtip. The video ends with a parachute ride...