The first time I went to FLY the A310, it took exactly 55 seconds to get to the flight. A very short time.
Using (Feel There) LAX to (ORBX Burbank 2), I get 24 fps sitting on the runway and the lowest fps near LAX going straight out West is 18 fps. And stutters and 12 fps at Burbank. In a general aviation plane, I get over 50 on the runway and never under 30 anywhere in this flight and no stutters.
Developers mode menu, Options, Display WASM Debug Window: