I have considerable direct experience running the timer for shooters of all levels of competition, and no mortal is going to "outrun the action" on a properly set up semi or revolver. All else being equal, it is easier to shoot the semi faster.
In addition to his revolver record, Mr Miculek does a demo with a 1911 holding the pistol in his left hand and "fluttering" his right hand on the trigger, which results in emptying the magazine at firing rates up to 600 rpm: machine gun territory.
For reference, a .1 split = 600rpm rate.
You can find splits below .15 at any Level 2 or higher USPSA match in the double taps, which is about 400 rpm.
The real contest is not how fast you can pull the trigger, but all the time you spend on the clock NOT shooting: draw, target acquisition, transition to next target, reloads, moving to next firing position, etc.
That's what you really learn under (simulated) pressure: smooth gun handling.