It’s not something I’d LIKE to do to ROTJ since I don’t really like the sequel trilogy’s story…but:
There may be a way to change the Emperor’s explosion slightly to have his energy “leave” the Death Star and dissipate into space offcamera. Just an implication that something went off into space that leaves it open to how his “ghost” got into the clone body.
Also, perhaps Lando’s explosion can be edited so the Death Star cracks into solid pieces, and show some of them spiralling off into the nearby planets. This makes Rey finding pieces of it less jarring.