Mesh loading very slow with many meshes

Hi all,

I tried to use the built-in gym.add_triangle_mesh() to load my meshes. For around 2000^2 triangles the loading time is about 18s. However with 10000^2 triangles it takes forever.
Is this expected to happen? If so, how can I load my meshes faster or is there any way to reduce the number of meshes.

Thanks in advance.