Every other month I shoot an entire Steel Challenge match from IWB concealment with one of my carry guns. That's 39 timed draws for the match on 5 each steel plates at various distances times 5 per stage. Then the other month I'll run the IDPA classifier all from concealment also. Timed and scored. Unless you have a scoring target and a shot timer, you are only imagining that you are fast, but you are not testing it. Most shot timers are about $100. And this is not about competition versus tactics, it's purely about the mechanics of shooting quickly and accurately. I can get to .89 seconds from, an IWB concealed draw, putting 2 in the A zone at 5 yards while stepping back on a random start timer. I belong to three private clubs, and practice CCW with my G31, G19 or S&W M&P Shield, all from an Alabama Hooker IWB kydex holster. My 357SIG loads are a 125 gr going about 1,440 fps and for the 9mm, a 125 going about 1,300 fps.
If you don't belong to a private club, and your local range does not let you practice using a shot timer on a scored target, then find your nearest IDPA match and shoot that as practice for CCW. The rules require drawing from concealment (can be an IWB, but most guys run OWBs), using cover, tactical and retained reloads, engaging in sequential or tactical priority, with 6 stages per match, and they scenarios are always different.
Here's the challenge setup (195 rounds), and the (new) 72 round IDPA Classifier (used to be 90 rounds)
Now this guy "IS" a genuinely fast, and tactical