I would start slow and simple, perhaps rapier speed?

If you put a high detail version up I can see how my GeForce 460 GTX handles things- I can take lots of pretty pictures though.....

Delta location is just a way to describe simple movement without physics. It just relocates an object a set amount in a certain direction. It causes problems as sometimes this teleporting goes into walls.

Out of interest, how do you tell a node is on the left or right? Rays /radar or mathmatically?