FPS drop after the latest update

After updates your performance goes down as there is normally more stuff to render but it shouldn't be this bad go setting graphics advanced then performance graph or whatever it is see which component is not working hard enough if you don't know what it means then just take a photo of it and I can tell you also you want to update your graphics drivers 

I just updated my Graphic Driver and I didn't touch my game settings after the latest patch though.

delete your bf6 game settings folder located on your pc documents. restart pc then try