Ive built a shading network that uses closestPointOnMesh on pretty large mesh. As a result its really slow.
This is fine except it makes maya unworkable because its always trying to evluate it in the viewport, or if I turn that off - for the tiny little preview icon. Any time I want to change tweak anything on the shader everything either freezes or slows down.

I just dont want it to to evaluate this graph at all until render. Is there some option somewhere that Im not looking to fix this?