That doesn't feel sluggish edge to edge? I have the same board with an 11.5 boot and it feels somewhat sluggish edge to edge on hard snow for me.
I don't know, its only the 3rd board I've owned in my life, my last being a '91 Nitro Pyro I got when I was 13 or so. and that was a 165. I don't have anything else to compare to.