When they are generating you can work them fast with hard twitches from the rod tip, with slight hesitations in between. You only turn the crank to take up slack with this method. The speed and hesitation time is determined by the fish, but when generating, it's usually fast.
You can reel very slowly, but it's definitely not the same reaction bite. I've seen guys slowly reel with smaller countdown minnows with good success in the past years.