QTR-Quadtone RIP

I am experimenting with making digital negatives for carbon transfer printing with QTR and the Epson 3800. I use PK because MK gives a very grainy look, and in order to get the very high density range I need (log 3.2) I must use a profile that lays down a lot of ink. Problem is, there is so much ink that it does not dry immediately, and I get pizza wheel marks with the regular Pictorico (but not with Pictorico Ultra).

My question, is there any way to slow down the printing speed with QTR and the Epon 3800?

Sandy King