yeah lighter and smaller, and you can adjust the timing as well.
engine will have less kickback, and accelerate quicker/more responsive
you will loose a touch of engine braking, but i can't really notice it in my Lifan 150.
i would message OORacing and double check compatability on the cam/springs with them before you order it.
or you could looks at what TBolt US has in the way of cams and springs too