Nobody admits thus but there's a huge gap in graphics quality in FH5 going from the 60 fps to 30. They had to tone down a lot of the tesselates high res textures and the lighting is worse too at 60.
Which begs the question: Are these consoles even capable of unreal 5 games at 60? So many can't even run fidelity mode quality visuals at 60 fps using hood upscaling.
Ratchet, Spiderman, forza 5, horizon fw to name a few that are scaled way down to hit 60 (ratchet and Horizon not too bad but Spiderman and Forza look last gen at 60 fps). Lots of games like this.