SilverWook said:
Vader probably relished a chance to cut loose on some Rebel scum.But he casually walks in and looks around at the dead troops like it’s just another day at the office. I see what you mean but the whole thing feels like the obligatory lightsaber moment. It’s trying too hard to be badass seconds after a sombre ending.
The guy lives in a big life support machine, so all that hacking and slashing probably wore him out.
My friend has a theory that the reason Vader seems less active in ANH is because he hasn’t had a chance to heal in bacta if he has to go back to Mustafar regularly, and perhaps the Devastator doesn’t have the pod thing the Executor does.