What are your specs? Mine's not an outright beast (1060GFX card, 2600X Ryzen) but I'm surprised I've managed to hit High settings with a consistent 28fps, which is kind of all you need for a tootling along flight simulator. There's some options that are more hungry than others, natch, but I hear a big load on the CPU is the interior cockpit and there's been a tweak on the config file touted in reddit that's bringing a 25% frame-rate jump or more to a bunch of computers. It does it by reducing the FPS refresh rate of the largely static instruments, and it's kind of unnoticable but really bumps up the frames.
MarkG, that really looks tempting. Especially as I enjoy such shenanigans in American Truck Simulator. I'd for sure choose the Pacific North West around Oregon. The sheer variety of scenery, and not too far from the Seattle coastline and the islands around Vancouver, or a trip down to San Francisco. I went out flying last night to central Oregon to fly over the three abandoned old 19th century wood frame settler houses I hunted out on a trip over there many years ago. I found them! They looked like new wooden frame houses, but the property grounds were the same, the trees outside were the same from my photographs and memories and I clocked them accurately from the air!
I decided to take some snapshots with Nvidia Game Overlay, but it didn't work properly and didn't save. Bah. MSFlight, get yourself a proper screenshot camera facility please, it's insane you can't in a game which is basically sight-seeing. Any, flew about in my old skool propellor Cesna which I'm falling in love with and had so much fun visiting the places I'd hiked (Smith State Rock! Prineville where I went on a bar-hop with that weird guy who was straight out of Always Sunny casting, Patrick Fucker McGee!) that I ran out of fuel and had to glide down into a field amidst a woodland. Just made it. Looked up the road and there was a farm I could call a taxi from. Phew. What a great game.