Board Thread:Naruto Discussions/@comment-32617252-20180330183206/@comment-32685487-20180430231036

but that's speculation and we can't know otherwise. A did state he was going to use his maximum speed against Minato at that last moment when Minato warped to B and held the unai up to him, we do know that. We have no proof he was not using maximum speed. So maybe A did improve later in life with that tech. We don't know.