Cloth - Unity's performace nose dives when "Self Collsion and Inter Collision" is enabled.

Steps to reproduce
1. Open attached project
2. Select the "Red Goal > Net " in the Hierarchy.
3. Go to Window and load a profiler window.
4. In the profiler select "Profile Editor"
5. Find the cloth options in the inspector and select Self-Collision and Inter-Collision.
6. Try to navigate the around the object in the scene view.

Notice issue >> The scene view is slow and unresponsive. You my find that you are unable to unselect objects or the rotation. Have a look at the profiler, notice the CPU is taking a tumble.

VIDEO ATTACHED

Broken: 2018.1.0b13