I decided to finally upload the route in hopes someone would challenge it. A bunch of movement and execution errors are in this, so it's highly improvable [I've gotten ~2:30 before].
Non-obvious Mistakes Should have back-flipped + dove backwards onto the upper ledge when getting back-flip. In the orange room with two bats I should have done another jump dive right after clearing the second bat, followed that with a jump that maintains the horizontal velocity, then back-flipped once against the wall to get on top of the ledge. Meant to skip the checkpoint when getting orange rune. Purple to yellow transition should have been: after you're in that corner in yellow area, should back-flip then dive over the edge and then jump holding right when you land, that should automatically bring you up to the shaft.
Might be some other stuff that I don't remember.
Also, second run after not playing for a couple months lol