The ability to "see things in slow motion" (Zeitraffer phenomenon) in order to process images more quickly would have a great advantage in shooting sports, and many others like ping pong and hitting a 100 mph fast ball.
https://brainblogger.com/2014/10/09/brain-trickery-seeing-in-slow-motion/

Ted Williams did have remarkable visual acuity, but he admitted he made up the stiches thing
http://richmondoptometry.blogspot.com/2011/01/myths-and-facts-about-ted-williams.html

That is not to say that visual processing can not be improved using various techniques, and MLB players have been at it for > 20 years.