Improve ASA performance with this command line...

r.SkyAtmosphere 0|r.VolumetricCloud 0|r.VolumetricFog 0|r.Water.SingleLayer.Reflection 0|r.Nanite.MaxPixelsPerEdge 4

Press the   `     key  (usually above TAB) then  copy/paste the above into the command line.
You'll have to do this everytime you go into ASA.