Found an earlier Out of Bounds in the Portal Room by using Airdodge instead of Darkness Ascending, which makes the skip possible to do at lv3 instead of lv5. So I had to make an entirely new route, with lots of new stuff, which saves ~17 minutes over my previous world record run!

This was my first attempt so it's not perfect, but it's good enough for me. Sub 52 shouldn't be hard to get, but I'm done with this game so it's not going to be me.