How to prevent convex mesh colliders from recalculating?

Hey guys! I have a couple of convex mesh colliders, and I need them to be disabled for a while, and then enable them. Problem is, each time you activate a convex mesh collder, it recalculates it’s mesh. My question is: is there any way to force Unity to calculate the mesh at offtime?

Maybe not deactivate it, but push the gameobject on another layer and ignore that layer on collisions?