Happy Holidays !
Peace and Understanding around the World!
So WordPress 5.0.2 came out with massive performance improvements to the block editor especially for posts with many, many blocks. I tested it here on a post with 94 blocks and it was wrap speed compared to before. Hat Tip to the Dev Team!
Hopefully you can fully unplug and be with your families and friends. Be present, be in the moment, look up! — Yours, Birgit