This trick currently has no use in a speedrun
Using a trick with Irene's Bell, it is possible to enter a doors loading zone without actually loading the next area. This causes Link to walk far OoB as if he was entering the next room, but without actually doing so. This glitch only works in places that are indoors such as:
This is currently useless as Link's controls become locked up and he will stop walking after a certain distance. He will then stand for a few seconds then fall into void. You will be respawned either back in front of the door or you will enter the next room (each doors outcome is different).
If done correctly, you should enter a loading zone at the same time you pulled out the bell. This glitch almost always causes some oddities with the majority being camera glitches.