After the last update I'm getting extreme lags using the DTM 2020 cars with fps being high enough. If I try to close the game it freezes, can't even close it using the task manager.
I'm having the same issue. I've read that possibly it's GHUB interfering with the game. Are you using a logitech wheel? I can't confirm the fix as I'm at work.
Kill g hub from the windows tray and see if you still have problems (you will obviously lose some wheel functionality while you test this). Logitech are aware of a bug in their software and are supposed to be fixing it.