Yeah..its definitely cuz he double taps with the first pistol(left)..and if they were a little more spaced out it would sound good..its just happens way too fast..I've went back and watched AOTC and during the battle of geonosia he does fire off a couple of double shots..thing is..its pretty much half the speed..that's why now you hear more of that popping sound because they put the shots to close together so you dont hear that resonating sound as much. Either slow down that double tap with the first pistol, or put it back to just two shots overall.
Again, as I said... IF IT AINT BROKE DON'T FIX IT!! lmao