Throw my $.02...
Most pitchers have control of three pitches. The curve drop is simply a poorly thrown drop ball. If a pitcher doesn't get the 6-12 spin right, the ball tails to the outside.
If you throw it as an off speed pitch, do you feel the same way? DD throws 54/55 and throws kinda out the back change that is 46/47 with good down and away movement like a drop curve.
Her change is 42/43