Hello,
I've now faced a lot of random fps drops. My computer is enough powerful to run LFS with fps, but I have a really interesting fps drops.
A) Fps drops to somewhere between 15-30, I think. Not sure, because LFS's fps-limiter shows 100fps, same with Shadowplay/Fraps
B) Fps drops only when there are lot of cars. But most of the time I have static 100fps
C) Fps dropping lasts only like ~3-5 seconds, but in racing, it is REALLY long time
D) Fps doesn't seem affect to steering wheel / mirrors (different viewports?) - however, not sure about these, since mirrors are small areas to notice fps drops
E) This issue is pretty new
I haven't played that much now, so I'm not sure when this started, but I managed to play new westhill with no problems at all. So if this is LFS related, it must be related to pretty new version of LFS.
Game feels like it would choke, like with many cars, it would start to choke and fps is getting lower, then game starts to breath again and gains some extra fps and goes back to 100fps.
Just to make sure, my computer is enough powerful, it has no problems (heat, I/O, etc), and software are fine, no problems. Running Win 7 Pro.
Ofcourse many times this kind of problems are related to bad GPU drivers, so that's what I'm mainly thinking. I'm waiting for new drivers for my GPU and try again. But for now, everything is up-to-date, and I have no problems with any other game / software.
Feel free to comment / ask if you have something in your mind.