Let's say you are comparing speaker A and B side by side. Speaker A has sensitivity of 95dB and speaker B 85 dB/2.83V, if both have the same in room frequency response from 20 to 20000 Hz, on and off axis, same distortions spectrum, same maximum spl output at rated input voltage, and both driven by two Mc 1000 W amp. At 1,2, 3,4 meters they should sound equally dynamic. That's not reality, so I think in general, some speakers will sound more dynamic than others.