Do you need to actually dry the vehicle after rinsing the product? Or can it air dry?
On the vertical surfaces the water should just run right off. On the rest a quick drying towel or blower will take care of it, or a quick drive. One area to pay attention to is the gaps around the hood and doors etc.
I found that a quick buff with a good thick microfiber really helped.
The key to these products is how they are applied. It's easy to spray too much on and waste product.