Scenes where a paddle is used sometimes look softer than they are. When you are just looking at the punishment, it will normally look much harder, if a whip that leaves heavy marks and maybe even cut the skin is being used by the Mistress. A paddle can however also be extremely distressful, as the paddle is normally used, at the same spot all of the time (the butt). Especially if the paddle is hard, the Mistress is strong and the slave is not experienced in receiving punishment with a paddle, then it can be almost unbearable distress. Regarding this scene the paddle is hard, the Mistress is strong and about the slave's experience, I am not 100% sure but he seems to suffer.