User blog comment:Goku484/Goku vs Superman, once and for all!/@comment-5869016-20130113052111/@comment-396366-20130114024842

In the case of Dragon Ball, Ultra Super Saiyan is an example of increased power at the expense of speed. Therefore, raw strength does affect striking force a lot, at least in the case of Dragon Ball. Superman has been shown to be able to control his strength as to not hurt others beyond his target. He doesn't to OHKO them because he fails to put just enough power into his attacks.