Hi everyone, I'm also connecting to this post, this happens to me:
I did a couple of identical flights as a test.
I leave from Olbia and arrive at Fiumicino, both Msfs20 pay airports transferred to '24.
In Olbia everything is ok, I always have between 80/100 fps, but on arrival at Fiumicino the performance drops terribly, even reaching 10/15 fps.
The cause cannot be the Fiumicino scenario, because if I take off from here, I always see 80/100 fps, the problem is always the arrival.
I also have the Fenix and the RJ from Just Flight and I don't have these problems.
3080TI and Ryzen 5800X3d.