I agree with Ram. The heavy double action pull of the revolver adds to safety, especially if you pocket carry and are worried about it going off by bumping something,
How ever while shooting the revolver's heavy double action isn't that much of a hindrance.
I time my shots, getting six shots off as fast as I could to see the difference.
Model 64 1.53
Gold Cup 1.47
Beretta 92 1.42
You'll notice, with six shots the Revolver (M-64) is only .11 seconds slower, and that's with six rounds.
A younger guy with faster reflexes could probably do better then me.