Came back and finally beat it:) But the first time it was cause I "cheated" maybe by hopping on those platforms at the top and clipping through the one way floor Did it in 15 min, but the second time (I had to) I did NOT cheat and here is my time, sub 1 minute club :
Also, sometimes I got stuck between cube and wall just bouncing non-stop, which gave me a reason to reset the time aha.