Grab gun, load, top off mag, holster, ready. Doing the same thing every time can help calm your mind before the beep, but at some point it becomes ridiculous and hilarious.
I've seen videos online of shooters practice drawing, sight picture, practice reload, practice reload again for extra round, seat the slide with a bump, check the chamber, seat the slide with a bump, reholster, airgun the entire stage from the start position, rest their hand on the gun, and THEN take it off and they're ready. Those sort of people require their heads removed from their behinds, there's quick and effective pre-run drills and there's acting like a dancing twit for a literal 30 seconds while everyone stares.
I won't post videos, but from what it sounds like no one here has one that's THAT bad.