This film definitely has more overblown action, and more bloody violence, though the number of action sequences in this compared to the first is hard to say.
There's the opening shootout, the street shootout, the freeway car chase, the house shootout, the second car chase, the shootout/foot chase/fight scene, the mansion shootout, the hummer chase, and the final standoff. That's around 8-9 total sequences, as compared to the first film's 5-6.