Hi Sebastian,

> UPDATE: Set the value to 5 (was 0.2) and unchecked
> inflections and its worked!!

Yeah 0.2 is extremely tight - that's asking for only a deviation of 0.2 angular degrees between surface normals of the display mesh, so that's going to generate a tremendous number of triangles.

Even 5 degrees is still quite tight - the default is 10 and even that is on the tighter side.

If you are working with large files I would recommend setting "Mesh angle" to 25 degrees (25, not 2.5) and uncheck "Add detail to inflections" and that will help lessen the memory load by quite a bit.

- Michael