I am still just an amatuer, a newb, etc but when I first started I thought I had to have close to a perfect sight picture. I had never tried to really shoot fast and when I did I was still slow cause I had to make sure my sights were lined up like I was always taught. After reading here and a couple books I found out that is doesn't need to be perfect and was advised to experiment at different distances how much I could get by with. Enos' book touched on that and then Ben Stoeger's book had Skills and Drills had a great description of seeing an outline of the gun on the target @ 3yds, the front sight on the target @ 5 yds, the front sight somewhere within the notch @ 7yds or maybe 10, can't remember, and a better alignment @ 15 yds with 15 being the transition zone between target focus and from there on out front sight focus for more precise aiming.
Those realizations really helped me move past perfect, especially once I went out and proved to myself that hits are possible even when things aren't lined up.
You may be there already and still trying to get more speed but that was a big hurdle for me. Now I feel like I can make more progress on speed with tips on tight grips, recoil control, etc.