Here are the current strats that I use for each level: https://imgur.com/a/co8fMdB With perfect execution, this comes in at 2:37 - 2:44. More realistically, these are routes you can consider for a sub-3 time. Note that Levels 1, 2, and 17 use a recent trick, explained here: https://www.speedrun.com/ep1/thread/b81ix

Edit 20240728: reupload images; also note that there are better setups for 14 (with enough flow, hold flow at the start of the level while running back to the corner, then flow double over the top) and 29 (stop before teleporter, then jump into it while touching the wall behind it; hold flow and jump as late as possible for the double)