Why are these threads so slow now?

https://www.youtube.com/watch?v=47GvY9rOMUs
I hope you all know we're going to get the Song That Plays When You Fight Sans soon just similar to how we finally know where it rained.

The climbing mechanic in chapter 4 was such a good idea for level design and variety, it feels very natural to be added to the game. I hope Toby keeps shaking up how we move around in these worlds, the gameplay parts of this game are underrated.