Old cars had fully mechanical steering systems which required a lot of physical effort by the driver to steer. As technology progressed, mechanical systems improved and became easier to use, but, to some extent, they were still "directly" controlled by the user (the steering system is mechanically linked to the user).
Even newer cars have fully electronic controls with controllers and actuators (the steering system is no longer mechanically linked to the user). However, some people claim that this newer technology is slow, citing input lag.
My question: Even if there is input lag today, couldn't electronic controls be significantly* faster than mechanical controls in theory?
After all, the latency in a mechanical system is limited by the speed of sound, whereas in electronic controls, this latency is limited by the speed of light.
*not necessarily perceptibly