Very slow viewport updates

[Dragony]

Hi.

I have a quadro 5800 with Max 2010, Vista64 and DX9.

My problem:

If I create a Fume grid in the viewport and want to display the voxels (smoke and fire) it gets VERY slow when I move the viewport. Even if I have just about 100 visible voxels. It looks like the movement blocks every second for about 300ms, as if it always needs to update something. This phenomenon immediately disappears when I disable the voxel view.

What is it?

[sitnisati]

You can try to keep only one viewport active - that should work fast for you.

Kresimir