I have tried turning off the online function, thinking it could be coming from a bad internet connection. Sometimes it helps a bit smoothing the flying experience, sometimes it doesn’t change anything.
I have tried changing a key in the registry following this video but no improvement at all : 30 Second Fix to Increase MSFS Performance | Smoother FPS & No Performance Degradation - YouTube
I have tried using aircraft selector to load the aircraft once in the game as some videos on YT said it could solve some FPS issues but nothing changed.
I have tried reducing graphisms to their minimums but didn’t change anything.
I have also removed addons and cleared the community folder but no improvement.
I am out of ideas! 