I had performance issues after the WU3 update, 1st it was an old outdated cache, deleted that and things got better, the sim updated the next time and things went back into the toilet again. After extensive digging and looking for issues, I found various things that were causing the slowdown lack of performance.
A ethernet driver that windows didnt like, had the 20 mb download limit bug after that fix, downloads are back up to 90 mb. Tracking adware, that was causing issues with the game, etc. Now that all those things have been corrected on this end, the only time I seem to still get ‘poor performance’ seems to be during what you would consider primetime, when the servers are under load due to everyone else on the game at the same time.
And remember that MSFS isnt the only thing running on the Azure network either, so when there is a heavy load on the Azure servers, the game seems to suffer as well. It didnt used to be like this in the beginning.
Hell mothers day during dinner time, I was flying the A320 at 35-40 fps constant, the next day during prime time I could barely achieve 15-20 fps with stutters.
If you search the net for info on Azure, you’ll see that the servers are over worked, and I really think that if you dont have an A#1 network connection and a very clean install of windows, etc, you will get these problems. Though turning down glass cockpits helps a bit it still isnt what it was back before the troubles started back in January.