I don’t know if anybody has suggested this yet, but I have an idea for extra footage that could potentially be put in to smoothen the pacing. When rey and the others escape pasaana in Ochi’s ship, the next time we see the falcon it’s being flown to the first orders Star destroyer, and ren talks to the emperor. There is a deleted scene from the force awakens where kylo is in the falcon searching it, and he goes up to the pilot seat, clearly thinking about his dad. Since the falcons abandoned on pasaana, we could add this scene in so kylo is the one who flies the falcon back, and he hears voices of his dad/mom when he is in the falcon. This could be done with some vfx on his helmet to make the red cracks on it, and some color correction so it looks like pasaana when he is in the cockpit.
This would also add onto bens redemption arc, teasing before the actual Han vision scene