Let me know if it works :) If I recall correctly, it happened to me and forcing the graphics card fixed it (although sometimes it gets laggy randomly, so I just save and reopen, and it usually fixes it)
Hmm, does the NVIDIA game thingy popup when you open it? Only after I set the graphics card to be forced on, did it start popping up when I open it. Maybe try to set it from the nvidia control panel too just in case windows graphics isn't enough, i did it on both
