The Americans drilled daily with live cannon, while the British drilled less often, and without live fire (presumably to conserve powder and balls).
As an unsurprising result, American crews were more experienced at reloading under the duress of cannonade. The sound on the gun decks was so great it would burst eardrums. The smoke made it too hard to see anything a few feet from the portals.
If you've never been near a gunpowder cannon fire, it's hard to comprehend the surreal rupture of reality it causes in your perception. I was to the side, but in front, of one. My world went black, then lightening values of gray. Sound returned. Then people appeared in the fog, moving with their arms out trying to get away blindly from the threat they perceived (that was already over).
Without proper training, new sailors will stumble badly in their first firefight, and each man on the gundeck is crucial to a team. The officers were outside the deck, so they could receive orders. If you can't load your cannon while blind and deaf, your cannon sits quiet a long time.
It's not explicitly rude but depending on the exact circumstances it's kind of pushing it to shoot 12ga and full power rifle rounds at indoor recreational ranges. Like don't do it on Saturday morning when it's busy and everyone is their with their wife or kids or whatever. Anything with enough concussion to be obnoxious to other shooters is sus.