Actions should be done speedily, with facility, and with pleasure. In the virtuous person, this process is done quickly, and there is pleasure. Disordered action can give a fleeting pleasure, but it doesn't lead to joy. The entitative habits grant quality to being without being necessarily dispositive to action, e.g., health, grace, or original justice. They deal directly with our being.
Operative habits respond to our faculties.
The habitus can exist only in a being which has a potentiality. The operative habits can be in our intellect, will, emotions. The body and the senses can be subject to the habits only to the extent they are under the control of reason and will. There are no habits in animals, only quasi-habits, for it not an action of the reason and the will. The habit is on the side of the trainer of the animal.