Yes, I understand that. But for industrial and automotive applications 1msec is fast. Automakers can’t afford i7 octo-core processors, especially since they use a distributed processor architechture. Plus, that loop time includes a lot bips within that loop.
On the 9 mph electric forklifts I worked with we prototyped a vision recognition system on a laptop to identify pallets. We could only run it about 3/4s of the lift speed of the forks. My engineer worked for quite a while to code that into a dedicated chip to do those calculations within the forklift’s 35 msec control loop time.