Violence is a way of life in the Scandinavian warrior culture of Beowulf. When your hero's goal is to kill a local demon who's been attacking people and carrying off corpses by the dozen, you're going to get a certain amount of circumstantial violence. In Beowulf, battle is not only bloody, it's gory and grimy and sweaty and sinews are tearing apart. Corpses don't just burn on funeral pyres; the fluids and gases ooze and bubble out of the bodies as they're burning. People don't just wrestle, they tear each other's arms out of their sockets. You get the idea.
Violence is depicted as a fact of life in Beowulf, something neutral that can be used for good or evil purposes.
Although Beowulf himself is a violent character, violence in the epic of Beowulf always has negative connotations.