Those aren't terrible stats at all. I'd up the cbet% to around 65-70%. The key is trying to do that AND keep the cbet sucess% around 50% as well. I think I 3bet more than you do but you're obviously adding some bluffs which is ok. I probably wouldn't advise upping that unless you have a good idea how to play them postflop. But if you see some nits who raise the button a lot and fold to 3bets (over ~75%) then def. resteal in the blinds and you can c/f most flops and still be +EV.