One interesting thing - ANH and TESB are widely considered his two best SW films, and those are also the 2 that went well over budget. I personally think that there was more effort to get good takes in ANH and TESB… and those films (esp TESB) feel more perfectionist. As a fan I don’t care that they went over budget (but I do understand why Lucas and the people providing funding would care).
I’ve read reports that when he was making the PT Lucas wouldn’t do that many takes and instead would try to fix everything in post. Lucas is a great editor, but I think he leaned too heavily on trying to fix everything in post and as such we are left with scenes that leave me thinking “That’s the best take you could get?”