445.87 is the only driver i havent hsd problems with. Newer drivers with Nvidia Reflex also add a lot of CPU latency unless running uncapped fps (i lock fps to 90)Well I rolled back my drivers to 445.87 and turned texture steaming on and all seems much better now. I can't tell if that has made the difference or if the problems of the last few days were at the developer's end. Maybe they've paid their bills and got the lecky restored fully!
4 or 5ms cpu time with 445.87, when i tried the recent drivers i had 11ms cpu time