Question...
This pistol appears to have a hammer.
Wouldn’t that significantly slow the rate of fire?
Question: Have you ever seen a 1911 that didn’t have a hammer?
Most military weapons have a hammer. The M14, M16 and the AK47 have hammers. As for the 1911 Its formal designation as of 1940 was Automatic Pistol, Caliber .45, M1911 for the original Model of 1911 or Automatic Pistol, Caliber .45, M1911A1 for the M1911A1.
Only in video games do the developers adopt an arbitrary firing speed for semi-automatic firearms. In real life, as fast as you can pull the trigger is as fast as it shoots.