I don't know how old you are or how good your eyes are but my shooting went south due to my aging eyes. Precision alignment of the sights is just a memory for me now.
I had some good shooting glasses made and it helped a lot but it's not the same as a good set of young eyes.
Yep, I have this going on as well. Definitely impacts my ability to shoot groups on paper. This is why I like shooting steel. I understand the shoot small, miss small, but my eyes will only do so much these days. Center mass and hitting a reasonable sized piece of steel with double taps, at 15 yards is where I live these days.