My Glock 23 is much faster to draw than my Kimber TLE 1911. Both are way faster than old school da/sa triggers.
Heres why
assuming a close threat where a high speed draw and fire from the retension postion is required)
1)The Glock is a little shorter than the 5" 1911. I have to lift the 1911 higher out of the holster before the barrel clears and can be rotated onto target. This is not a problem with shorter 1911's.
2) It takes serious cordination to pull the trigger, drop the safety, and squeeze the frame, all while drawing. On my 1911's sometimes my grip is compromised while drawing and sweeping the safety at the same time. The gun fails to fire because the grip safety is not engaged. My solution is to practice drawing more, and/or carrying with the safety off when the odds of needing my 1911 increase. Often I get the grip pulled and the trigger pulled before I drop the safety and the safety dropping is what triggers the gun. Drawing the 1911 with the safety off is just as fast as the Glock and allows me to retain a good grip and decent speed. I still have all my toes.
The Glock has 0 safeties. Draw, pull trigger. Very easy to do fast over and over again. I still am ok with 1911's though. My Glock is faster, much faster though.
Da/sa guns have to hard of a pull and my leverage on the trigger is compromised on a real fast draw. Less accuracy due to the stiff trigger. Much worse than 1911's and Glocks to draw. I will never, ever carry a da/sa gun ever again after experiencing the difference at a advanced pistol course.
3)Weight, a lighter gun is noticeably faster to move about.
4) No external levers to get catch on my clothing. I got a HK USP tangled up in my shirt during a course one time. It took 10 minutes for my instructor to stop laughing at me.
smooth sides of the Glock help quite a bit. Kahr, Walther, SW all have relatively smooth sides. No safeties, decockers,etc.
5) I can make the Glock trigger faster still. I've recently been able to shoot a Glock that belongs to one of the guys working at my local gunshop/range. its trigger was much nicer than my stock trigger. Probally the second best trigger I've ever shot. (1911 triggers still rule) So its not like a striker fired pistol has to have a bad trigger. Its just that noone is willing to pay an extra $100-200 for a better trigger on a utilitarian gun. Except for me, oh yes it will be mine..........
Simple, speedy striker fired pistols, that don't need safeties or any kind of special rain dance to fire are where its at. Every split second counts when most gun fights are less than 10 seconds and 10 feet distance.