Extreme Collision-Based Lag

Might anyone know as to whether there has been some change in the way static collision is handled? My Crash Junctions map worked without a hitch prior to the 0.8.0.1 update, and in excess of 50 fps. Now it operates at around 10-20 seconds per frame.

I've determined that the issue was due to the main road network objects, but in deleting them that leaves me with a city with no roads. This issue occurs regardless of visual or collision mesh collision settings, and almost regardless of how much of the road mesh is present. Attempts to cut up the original road and import only a few small sections have been unsuccessful; the issue is still present, and still brings the framerate down to an unacceptable amount.

 

somewhat off topic, but after 0.8.0.1 crash junctions really lives up to its name! in fact, it crashes so hard that whenever i launch it, beamng crashes

i have seen slight framedrops whenever hitting an object, or crashing in general since the early days of the game. its always been there. but ive never seen anything gamebreaking.