I have the same issue, introduced with Season 3 (I skipped Season 2). I haven't been able to play since because of the 100% CPU issue which introduces keyboard input lag.
I've tried the user.cfg fix that has been thrown around, but it doesn't help overall. It lowers the CPU usage to about 80% and fixes the keyboard input lag when there aren't many players around me, but as soon as I get into the fight, the CPU goes back to 100% and the movement starts lagging heavily again.
Everything else works fine. I can aim and shoot fine; the frames are fine.
It's just sad and infuriating that after such a long time, the devs don't have a working fix. It feels like they don't even want to fix it.
system info would be nice people!
Post dxdiag
make a movie / screen shot from neywork / fps bar !
cheers
what trouble shoot have ya done already ?
