I shoot an XD 40 service model, a S&W Sigma 40VE, and a Ruger P97DC in .45 ACP for qualification twice a year (two of these are duty, one is a BUG). Standard police course (150 rounds per course, minimum of 2 courses, everything from 3 yards out to 25 yards, strong hand, weak hand, two hands, standing, kneeling, sitting, prone, moving, cover, open, tactical reloads and all timed). Shoot a standard B21 target, with a minimum qualifying score of 70 each for two courses. Routinely score 98+, so I guess I'm a good shot. Can I get better? Sure - I'm always shooting for 100.
Went through the standard police simulator with a guy shooting paint pellets back at the shooter. Scored 85+ on three passes through and hit him a lot more than he got me! The shooters were only able to score hits on the vest (I took 2 of them) while I had three triples and several doubles, and took my shooters down fairly well, so I guess my reaction times are still pretty good. One of the simulators is set up as a series of rooms, with a single 'perp' somewhere inside. The other is an urban setting, with two or more 'perps' somewhere inside the area.
It's pretty easy to punch holes in paper when the paper isn't shooting back - try your skills in the simulator setting and you'll get a whole new perspective on 'shooting well'! I know I did!