@Duckysattva, I'm adding to my previous post. Note that I am very much not a bullseye shooter, so this may or may not be helpful. I can shoot 95+ pretty consistently with iron sights on a Shadow2 or P-07, but my goal is shooting as soon as I can confirm the sights. About a year and half ago I switched to shooting target focus with iron sights, and have had good success to 25yds, and even farther.
With a pure target focus, my precision (size of pattern) at 25 yds isn't quite as good, but the accuracy (center of pattern) is better than with pure sight focus. If I'm trying to shoot a very tight group at distance, here's what I do instead of either of those: 1) target focus on the X, 2) pull vision back to confirm alignment of front sight in rear notch, 3) if the sights are aligned acceptably, return focus to target and fire. If not, adjust sight alignment and start the process at (1) again.
I am always pulling the trigger while focusing on the X. Often I can shoot a good group just by doing the target/sight focus process once, and firing the remaining shots with a pure target focus. Each cycle of the target/sight focus process takes about 0.20 to 0.30s.