Not really. MMM gives NPC's/monsters individual stats, so some will run a bit faster - some will be a bit slower. But, no, no lighting bolts. Sounds odd.
Cos like all the human beings they move just like vanilla.
But Gore Rats, they rush me down at a speed well... you know they scare the crap outta me every time.
Wolves roaming around the wilderness are at an okay speed once they have reached me, but as I fight them and wound them to the point where they have to retreat they regain their awesome speed and i'm stumbling after them shooting arrows at random.
Not lighting bolts, but they are 5 times the speed Vanilla was.