BattleField 1 is one of the worse performing tittles at 60fps on Consoles, runs at 620p in some cases! Awfull!

[FIT_Gamer]

Mr Puggsly said:
That dynamic resolution is all over the place. It moves fom sub-HD to somewhere 1080p.

That's the best and worst resolutions a BF game has done on X1.

720p is the the max res on the Xbox One version.