Not much but in Sanctuary Temple, you have to grapple around to make your way on top of that big structure and from there you can grapple to the energy controller. Well if you just stand on the leftmost structure, L-lock up and jump towards the first grapple point that leads to the energy controller, you can grapple there, then the next and get to the door without going all the way around. Saves maybe 10 seconds, and even more if you dont kill the Quads and they keep knocking you down like me.
edit: You can also SJ on the Quadraxis leg against the right wall and from there SJ on the right structure. Once there just go on normally.
edit2: you could also get on the little right platform just under the energy controller door. stand on the box, look up left to the door, SJ back, grapple and get in the door... I think thats the fastest way to do it since you can boost across the room, but the first is pretty fast too.
edit: You can also SJ on the Quadraxis leg against the right wall and from there SJ on the right structure. Once there just go on normally.
edit2: you could also get on the little right platform just under the energy controller door. stand on the box, look up left to the door, SJ back, grapple and get in the door... I think thats the fastest way to do it since you can boost across the room, but the first is pretty fast too.