Electric motors have a top speed which is governed by the forces generated by induction. At higher speeds they spend more and more torque countering those force

Electric motors have a top speed which is governed by the forces generated by induction. At higher speeds they spend more and more torque countering those forces. Contrast this with turbines, where a higher inlet speed translates into a higher output speed - the amount of energy a turbine uses to keep itself spinning is constant rather than proportional to airspeed. This is why electric motors would have issues flying at high speeds.