Sounds like you have about a 2 in your Strength value. You can also pump up your physical damage by putting points in Acrobatics!
In the future you will be able to fuck them without needing to be defeated. Werewolves have a whole cave expansion planned for them. They were supposed to come in the next release but I decided to push their caves back and focus on more forest content to give more playable area with lower difficulty as the caves were meant to be a step up in difficulty.