I've tried DX11 but it doesn't really help. Makes particles affect FPS less maybe but otherwise it seems to be a bit demanding. Or not, hard to say, for most games it affects FPS negatively though even with DX11-exclusive effects disabled. Oldish CPU, or just the fact this is a laptop may be the issue, not sure.
I tried another match after restarting the client.
Close proximity to mechs lowers FPS, even when not looking. Once enemies get close as well, there's more loss, and combat does that as well. But this is not that bad drops. I assume LOD has effect here, closer distances require more resources due to added detail.
But this sudden loss of FPS happened again, about 7 minutes into the match. Indeed i could move away from enemies and friendlies and still have lower FPS than i early in the match. How odd. (And this was at a point when bunch of people had died from both sides so less people to track for the game.)
I do not recall this happening months ago when i last played. I don't recall this happening last summer either.
So i am doubting it is a heat issue... unless this laptop is starting to break down. Or something.
Haven't noticed this with other games, though MWO is the most modern game i play at the moment, didn't have any issues with Doom 3 even during long sessions.
*sigh*
Can't do anything about this, i think. There doesn't seem to be any suspicious processes running, my drivers are relatively up do that (but consider MWO is a low profile game and my hardware is no doubt outdated, drivers have minimal effect on things so updating them won't do anything really)... I can't think of what might be a problem, unless the problem will happen with other games as well.
Guess i'll have to start Civ V game, just about the only other demanding game i have.
EDIT If it is a memory issue... i wonder how. Pretty sure i haven't had that before, though now Windows certainly exhibits some symptoms i think are from memory issues.
Well, the next time i'll play, i'll pay attention to memory use, and close most other programs, see if that has any effect. Gotta eliminate options after all.