Is there a good way to recover very thin negatives in VueScan?

I have some very thin, underdeveloped negatives.

I was hoping to be able to recover them with VueScan, but what I get out of VueScan is extremely grainy. I realise there are limits to what can be done and perhaps these negatives are beyond recovery, but perhaps there are some settings that would help.

I’m using a Nikon Coolscan film scanner.