Solved
Low FPS on powerful hardware
Unplayable low fps (about 15-25) on 10-hour demo (a.k.a 'full version') and low CPU (~50%) & GPU (~25%) usage. My specs: Win10x64 pro 1903 i7-6700 32GB DDR4 GTX 1080 Ti Triple monitor config,...
If you cant disable origin overlay than I'm inclined to think the issue is origin. did you try clearing the origin cache?
https://help.ea.com/en-us/help/faq/clear-cache-to-fix-problems-with-your-games/
Important that you do every step and not forget to delete any of the folders listed.
