Handgun shooting for accuracy

I'm a former competitive bullseye shooter who is trying to regain at least some level of skill after being inactive--at least with my match guns--for a number of years.  It's a struggle, and at my age (73) I'll never regain Master status, but maybe the Expert level is possible, and I think it's a worthwhile goal.  Formerly, I belonged to a distinguished club in San Francisco, the Presidio Pistol & Revolver Club (now defunct) which had access to an indoor range on the grounds of the Presidio Army Base and two nights a week it was the norm to have the company of a dozen or so dedicated bullseye shooters working to improve their skills.  We all spent at least 90% of our shooting time practicing slow fire.  My shooting now is at a club where only two others have any interest in bullseye, and one of them is only an occasional shooter.  Sometimes I'll have the range to myself, but mostly there are two or three other shooters who will practice emptying their high capacity 9mm's as fast as possible--at about 7 to 10 yds range and usually at a man-size silhouette target.  In the time it takes me to shoot 30 rounds--3 strings of 10 shots at 25 yds, having to ask for cease-fires in between to score and replace my targets, these guys will expend maybe two or three boxes of ammo shooting a basketball sized group on their target.  Our target frames which are 24” wide don't last last long with this kind of onslaught.  I know, to each his own, and who am I to look down on other shooters?  Really, I don't, but I do wonder how we got to this sorry state where marksmanship to most simply means ventilating cardboard so that a target at 20 ft. distance appears to have been shot with 00 buck from 30 yds.  It's the movies, I think, and the sorry state of police marksmanship.  Right now there's outrage in Chicago over the black kid killed with 16 rounds from a cop's gun.  I was at our range recently on a Sunday morning and our club range master was giving a pistol class to kids--in the 12 to 15 age range--and actually timing them with one of those IPSC-type timers, while they blasted away, and then reloaded and fired some more.  Next he may have them moving between barricades!  Well, I just had to vent, I guess.  Those of us who learned to shoot with a single shot .22, and maybe never even shot a repeater until basic training in the military could be a source of valuable instruction, but I think today's typical shooters would be bored by it all.