If i take the timings down to next to nothing and have a perfectly smooth run, i think i could get the closed time down to about 3-4 seconds(Dont ask how, you dont want to know)
As for the open cellar, my dps is shite, so it takes longer to kill the mobs.
but i would imagine with super good dps, you could get that to be about, 10-15 seconds, again with instant logout
BUT I am not willing to add the instant logout stuff to this script at this time, its like asking to get banned.