FPS extremely low after a long time running, but when in the menu, FPS will go to it's normal state again

[ITDreamFly]

Closing topic as @BragRaindrop933 noted that this seems to be a similar issueas as the following:

After playing a few hours, FPS drops from 40 to 5FPS

Exactly the same for me, after playing a few hours, FPS drops from 40 to 5FPS or even lower. Playing on high. Ryzen 7 3800x 32GB RAM RTX 2080 Super 8GB VRAM 1 TB Nvme gen 3 600 Mbs wired ethernet connection No AI aircraft, just opened a ticket to Microsoft

Please continue there instead.