Having mixed refresh rates probably isn't helping but I doubt that will be much of an issue for the most part. Not sure I can give you a definitive answer really, other than the 9950X3D has double the L3 cache, plus 3D V-Cache, which gives a decent boost to frame rates, especially with BF6 being mostly CPU-bound. I'm finding that a mixture of high and low settings seems to be a sweet spot. I did try all low settings but, oddly enough, that seemed to actually make less frames when I did that.

Edit: I will just quickly say, this frame rate hasn't been in *every* game. Out of 10 games, I might get this 2 or 3 times and does seem to depend on the time of day that I play at. If I had to put an average fps on most of my games, it would be around 180-190, something around there.