Shade mesh modeling

[aliarcht]

I try to model shade net and applied into the window, i use shade mesh to produce shading on the window surface and some of the shade drop on the walls. I try really to model one meter of shade net in model it using local shade, but because of small size of the mesh and increase number of parts, the program can not run the model.
Kindly can any one help to suggest any idea about the topic.
The mesh size 5x5mm including 10 rectangular holes.