Like looms.
Robotics is actually generally pretty slow. Regular (serial) robot arms are usually significantly slower than a human arm. Some parallel robots (ie where the motors are mostly stationary and don’t have to be waved around by other motors), like a SCARA or Delta robot, can go about 2-3x the speed of a human, but the difference isn’t massive (60 vs 150 picks per minute?).
But looms are insane. Their task is simpler, but they can do over 2000 picks per second (!). The yarn in air jet looms can be moving over 200 mph. And even mechanical looms like Rapier looms or projectile looms are super fast. The mechanisms are also super advanced and hard to wrap your mind around. Centuries of optimization of the first really good industrial automation instance will do that, I suppose.
It makes me think we haven’t reached a completely flat plateau in mechanical development. Our robots today are actually pretty primitive compared to where they could... where they really should be. It also shows just how hard I think a lot of futurists have underestimated human mechanical capability. Human dexterity and force density is crazy impressive. Humans are actually super strong, fast, AND precise.
And hard automation like looms are also underestimated vs “robot arms.” Hard automation is so much more effective if you can do it. Just robot arms aren’t that great vs people