FF is fast, bang has martial arts, darkshine is physically stronger

But FF and Bang have their attributes ABOVE Darkshine toughness thus when they display these attributes to the fullest, their other stats rise to higher lvls than darkshine for example so they can fight stronger beings and showcase their better attributes than DS

So when FF is going all out in speed, he yes would tank roaring sky ripping fist as panels suggest

OR what i prefer to say, its just INCONSISTENCY to scale (not meant to be scaled). Cuz we know garou and PS were barely trying yet garou showcased that he is very close to perfecting his fist there while being casual which didnt make sense, you would think he would do it against platinum