Game Design Library is a hand-curated, catalogued collection of game design links. Learn more
https://www.youtube.com/watch?v=ixmOKhM_AlI
speedrunning Neon White Stuntman
You can make your game more speed-running with some (mostly small) changes: make all cutscenes skippable; make tutorials skippable for players who know how to play; minimize time to retry a level (players will retry a lot); allow user-set retry points; and remove randomness as much as possible.