While I do not offer a mod, change should be VERY simple:
RimWorld\Data\Core\Defs\ThingDefs_Races\Races_Humanlike.xml backup the file (just in case) and then open in notepad++ or Wordpad.
search for <power>, behind it you will see a number, just lower it as much as you wish. There are 4 instances in total (each hand, bite and headbut).
RimWorld\Data\Core\Defs\ThingDefs_Races\Races_Humanlike.xml backup the file (just in case) and then open in notepad++ or Wordpad.
search for <power>, behind it you will see a number, just lower it as much as you wish. There are 4 instances in total (each hand, bite and headbut).