Must say that my completed flight was quite satisfying. I have a midrange computer at best (i5-9600, GTX 1060, 16GB RAM, and I stayed above 30 fps though the entire flight including my approach and landing with NYC skyline to my left. Prior to this update, FPS would drop to < 10 heading SW from KBOS by Norwood airport, which is gone!
But I had two CTDs, one 60 second lockup (that resolved) mid-flight. Definite progress.