I think there is a ying/yang. I am shooting better than I ever have, I think because I have more trigger time, and mentally I am calmer, but there are some things my eyes just aint gonna do anymore.
I think a benefit on the mental side is that these days I also have the gear I “think” I needed. When I was young (like in my profile pic) I always felt like I was competing against guys that had the financial wherewithal to have superior gear (back then the gas in the truck to get to the match was taken into consideration…) and seemed to try and force my speed and performance to compensate. Turns out when you calm down and not give a shit you can focus on things that matter. Backing away mostly from matches and doing more informal peer group practice and competition probably also helped.
But my eyes are gonna be sixty in a few years, and there is just no way around that. I am lucky in the fact that I have had surgery for cataracts in both eyes, and it is really awesome. Synthetic lenses that I had setup for mono vision (read with my left, drive with my right), and I specifically asked for a little less than perfect distance correction in my right eye so I would be better able to see pistol sights. This has also helped my cross dominance a bit.
I had been setting up all my pistols with the 10-8 plain .140 rear and the (IMO phenomenal) HiViz over molded green front. It seems as if HiViz abandoned the over molded sights for the M&P for an interchangeable lite pipe that you can flick loose with a fingernail so I went looking for an alternative. Tried one of the Ameriglo big square green things and I am really pleased with it. But gee, then I was all concerned about the front being a square post and the rear being a rounded notch and was just not sure how that was going to work out. Then while dry practicing in the basement I had a moment of clarity, my eyes have no idea what the bottom of that notch is shaped like…