Actually, Vader has a bunch of cool ass scenes in this series:
There's one where he's looking for Obi-Wan in a small village and to draw him out, he literally starts pulling random people out of their homes with the Force, dragging them across the ground and brutally murdering them. Then there's another scene where he tears down an entire ship with the Force. And there's a fight with him and another villain where he's basically just toying with her and tossing her around without ever using his lightsaber. Then he takes her double-bladed lightsaber, breaks it in half, gives her back one side of it to fight with and then proceeds to beat her ass even harder with her OWN lightsaber lmao