The 5 has a better weight to HP ratio than the Cx-5:
5 GT:
CX-5 AWD GT
Combined with the lower center of gravity and better aerodynamics, I'm not surprised that the 5 "feels" sportier than the CX-5.
5 GT:
weight with Auto tranny 3457lbs
HP 157
Ratio: 3457/157-> 22HP/lb
CX-5 AWD GT
weight with Auto 3560
HP 184
ratio: 19HP/lb
Combined with the lower center of gravity and better aerodynamics, I'm not surprised that the 5 "feels" sportier than the CX-5.