I’m hoping someone could help resolve this issue for me, I’ve been having it since prior SU5 and also during SU5. My simulator seems to lose performance as time goes on, especially from the two and a half hour mark onwards whilst flying. I can go from 50FPS on takeoff to nearly 15/20FPS whilst at cruise some two and a half hours later, with no clouds around or anything.
A check of my usage shows CPU at 37% utilisation, and GPU at 38% utilisation. My RAM is well within its limits, so it’s not a hardware issue.
Changing the simulation graphics makes no difference, including dropping it to 480p at the lowest rendering resolution. It does this across all planes in the sim, and I cannot for the life of me figure it out. Like I said changing graphics settings doesn’t change the performance at all, which just shouldn’t be possible. Any help would be greatly appreciated.
+1
Had the same problem yesterday.
Main Thread & Manipulators going black while CPU is just at 10%.
Saving & Reloading flight didn’t help. Maybe a memory Leak somewhere?
As you see the frame rate decrease in flight, switch it off and your frame rate will return instantly. After you switch it off and regain your FPS, you can switch it back on mid flight.
Oh no, I’ve had the exact same issue since the beginning, haven’t been able to do a single flight for more than 4h before going down in the single digit FPS. I would have thought that SU5 would have fixed this issue at last, but apparently not, I can’t test at the moment but I will soon.
I literally just changed my resolution from 1440p to 1080p and my frame rate didn’t increase at all not even by a single frame, what a joke, I just don’t understand this - it’s not a memory leak either as all the RAM is normal.
Hi, did you have any luck with this. I am facing an issue in some cities (experienced it with Sydney and Tokyo) where after takeoff the FPS went from 40 to 9. This has only happened since the latest update. My CPU, GPU, RAM and VRAM usage are really low (around 30-40%) and the fps tanks. If I skip to a later part of the flight the FPS recovers fully.
I have a i7 4790k with 32gb of ram on an RTX 3070
These are my respective CPU and GPU stats in Task Manager, so as you can see I can’t tell why this is happening. I can confirm there’s no temperature throttling occurring.
But there is definitely something up AND important thing to note, it is really TIME dependant, not distance. I’ve done tests where I was just sitting on a runway in the Sahara for 8 hours, and sure enough, my FPS went from 30 (in VR) to under 10, memory usage was higher although I didn’t move a centimeter. At the beginning I was limited by GPU but at the end I am limited by Main Thread.
Now even weirder, sometimes, going in the menu or disabling/enable online functionality brings the FPS right back, but it often doesn’t work, the online disable/enable worked only once for example.
also when you go back in game? (it is what I initially meant, like sometimes going in the menu and back in the game restores my fps, after a LOONG freeze and some memory being instantly freed.)
