Practice, Practice, Practice, Practice, Practice. Shoot and Move, Shoot and Move, Shoot and Move. Run Drills........Run Drills, Run Drills, Run Drills, Run Drills, Run Drills. And not just punching paper, but on a practical shooting course with silhouettes.
I used to do this, partly for work, partly for competition, to the tune of >12K rounds per year. It builds skills and gunhandling, but don't ever confuse drills with having any similarity to a real gunfight. There is also a question as to the quality if training. Learn and practice stupid habits and you will perform them in the non-forgiving arena of a real life encounter. The same goes for your martial art of choice.
I own guns, have a CWP, and have no problem with the idea of persons being legally armed. I do have a problem with people who fire a few rounds per year/month and feel that they are now gunfighters (this includes LEOs who do the minimum qualification).