I spent some time flying around the Maidstone, UK area which is affected by the fps slowdown using the development mode to hopefully find the culprit. I have no idea what most of the stuff is, but at some point I changed something and the stutter went away. I turned off developer mode off and the stuttering returned. Unfortunately I didn’t get it to do it again but I did spot something on the attached pics which happened when the stuttering started and disappeared when the stutters did.
Hoping someone can shine some light on it
Edit: I’ve now cleared the stutter problem at Maidstone and have started a new flight with a different aircraft and it’s still good.
I flew through the problem area with the sim objects window open and ground vehicle check boxes checked, then returned to the area and the problem disappeared.
Now to restart the sim to see if it stays fixed
Edit: the fix works after a pc reboot. Just don’t switch off developer mode.
Does anybody have a good easily findable problem area I can test?