How to view large DGML or generate smaller DGML from Entity Framework Core

Question

I have a very large scaffolded database (> 1000 tables) and have generated the dgml file for it using

using (var myContext = new ModelContext())
{
    System.IO.File.WriteAllText(System.IO.Path.GetTempFileName() + ".dgml",
                                myContext.AsDgml(),
                                System.Text.Encoding.UTF8);
}

When I open the .dgml, Visual Studio complains

The DGML document is probably too large to be be displayed because the total number of nodes and links exceeds 25,000 (i have about 50,000).

I can try to open it anyway (which i do), it doesn't run out of memory but I've left it for several hours.

Is there a way around this?

Maybe only create the DGML for part of the database?