That’s pretty rough. I also have a 980 primarily running stock but it’s not lagging that bad. An no videos for me as well, this happens on a bare project for me. If you profile your game with stat startfile and capture some data, you will notice, at least I’m guessing, that you’ll see CPU Stall - Wait For Event sucking up a lot of time. In 4.6.1, one of my base projects with no assets in it went from 2-3ms to over 16ms when upgrading to 4.7 which was pretty crazy. I haven’t tried videos quite yet and have been doing my cinematics inside Matinee but I’ll probably wait that one out till at least 4.8 