Slow and lazy rising cigarette smoke with Quick 3D - SPEED Question


I'm at a loss to how I can solve this with HF Express4:

Got a still life here showing a burning cigarette in an ashtray. Have to add some extra smoke. Looks great with the Quick 3D effect “smoke” after playing around a bit.

BUT: I need the smoke to rise much slower. The “Speed” adjust function within the smoke properties seems not to work as expected. It changed the look completely.

Any tips for a Newbie to effects?