I’m one of the lucky ones who enjoyed the first year of MSFS with no significant performance issues and no CTDs. After Sim Update 5, I couldn’t launch the simulator and (to cut a long story short) ended up having to do a reinstall of MSFS from the Store. Everything is now working fine, with excellent performance once I’m in the air, BUT I’m getting huge FPS drops (down as far as 6 FPS at times) and dreadful lagging on take-off runs and landing (i.e. when I’m actually on the tarmac). Exactly the same problem occurs with planes as different as the default Cessna 152 and the FlyByWire A320NX.

Windows 10 is up to date, as is Flight Simulator (version 1.19.9.0). My GPU is an RTX 2080ti and the NVidia driver is also up to date. I have lowered by graphics settings to Medium, but with no result. I’ve deleted my previous Rolling Cache and my Community Folder is empty.

Can anybody help?

Is it the same airport or have you tried others? Have you tried Dev mode to see where the bottle neck is when the fps drop?

How's your internet speed and have you checked if the MS servers have been having issues at the time?

With help of fellow simmers on another forum, I've found the problem - and it's nothing to do with the particular airport, my hardware or internet speed.. If I turn Photogrammetry OFF, I get spectacularly good FPS everywhere - take-off, landing and in the air, at busy airports and big cities (whether or not the city actually has photogrammetry available).

I've just seen this Twiiter post from MSFS Support dated 30th August 2021:

MSFS Support

 

@MSFS_Support

 

Our teams are aware that some users are experiencing issues with Photogrammetry and Bing Data World Graphics in Microsoft Flight Simulator. We are actively looking into these issues. Thank you for your patience!

 

So it looks as if our masters are on the case 🙂