Recently found October 2020. May only function on the Steam version of the game.

Hit Shift+Tab once the elevator of The Great Wall has loaded and wait for approximately 4 seconds before resuming the game. This will desync your character's position from the elevator and cause them to fall into a bottomless pit. Holding this for less time will see your character 'vacuumed' back up to the elevator despite visually being underneath it.

This death will respawn you at the top of the elevator shaft at the doors. Saves roughly 22 seconds.