Watching the ILM documentary (
Light & Magic) the thing that stood out about Lucas is that he hated having his moviemaking decisions set in stone, and it being expensive and hard to change stuff. He pushed to adopt digital compositing technology, digital audio, then digital cameras, and digital sets, because he was so frustrated by the slowness and friction of optical and location work.
I think what comes across in the prequels as this sort of ‘first take’ feel to the performances is a manifestation of his impatience - he wants to get the footage, edit it, get the effects, and see the thing in his head. And the ‘remastering’ he has done is similarly a bit of psychological desire to always feel like he can fix it later.
Waiting five days for Phil Tippett to stop motion ten seconds of tauntaun walking must have driven him crazy.
Underneath, it’s an engineer’s kind of laziness - the sort that drives innovation. I honestly felt after watching that documentary that I am slightly less annoyed by the clunkiness of Attack of the Clones because I actually now can see underneath it the excitement of Lucas to use all the toys he has spent a fortune investing in ILM to build and just make the damn movie.