Cut all but the most bare minimum scenes that have Leia (by herself) or Reva in them. The only part with the inquisitors I would really want to keep is Owen’s “like you trained his father” scene. Delete most of episode 4 and have Leia just get on the ship from the tunnel. Have Vader do an honest effort to actually kill Obi Wan and not let him escape, or imply that he is letting him go to try to find others.

Probably going to impossible to fix in the end anyway due to something else cropping up in episodes 5 or 6.