How to make the drawing loading faster?

[Wilson.WanH8Q64]

There are 2 surfaces in the drawing. I only need the contour line and profile. Is there any way to make the drawing loading speed faster? When I zoom in zoom out, it took forever to load. Thanks. 

[m_kingdon · Accepted solution]

Do you have the command LEVELOFDETAIL on?

You could also try masking / clipping out sections of the surface you don't need if it is a big surface.  And layer management, freeze layers you don't need.

[Wilson.WanH8Q64]

It works. Thank you so much.

[Wilson.WanH8Q64]

Oh, but it loads every time when I switch between model and paper space. Is it normal?

[Wilson.WanH8Q64]

Is it possible to reduce the mesh size/ sample point? The grid is 1m. But I don't need these resolution. Check the properties of the surface and I can find any setting to alter it.  

[m_kingdon]

What type of surface are you using? If you are working with TIN surfaces you can use the SIMPLIFY SURFACE feature to reduce the number of points. I do this often with drone surfaces that are delivered to us as monstrously large tin surfaces.

[MMcCall402]

My drawings load faster when I drink less coffee.  😁

[Wilson.WanH8Q64]

I use DEM surface. Would if be different if I convert to other one ?