There is a skip on level 14. When the level starts, go to the diagonally facing pillar on the right. Spam jump until you reach the top. Stay on the left side of the pillar, and eventually you will get to the middle pillar, which is to the left of the diagonal pillars. Fall on it, without much movement. By holding w and not moving much, you can hover on the wall. Inch your way over until you are on the side facing away from the goal. Press space as you leave the pillar, and go for a landing on the part of the opposite diagonal pillar. Once there space space as much as you can until eventually, you've reached the top. Spam space while holding left, and you will land on the end platform. This skip can probably be made better, and I saved about 10 seconds or so. Here is a YouTube (uploaded by me) to give you an idea of the timings.