Although you have set a local CPlane where you objects are, they are very far from the World origin. This is the cause of the bad display meshing. If you move them close to the world origin, the meshing will be better.
Also, as you are working in meters at 0.01 absolute tolerance and the width of some of your objects is only 0.03 meters, you are getting pretty close to the file tolerance, which is not a good idea. I would raise the file tolerance to 0.001.