Have you taken a look at the coin's thread in ANN Announcements? It contains information for both AMD (OpenCL) and Nvidia (CUDA ccminer), to run it properly and show the bugs you might find there, so that miner developers can take care of your problem.
If you haven't noticed, here you go:
https://bitcointalk.org/index.php?topic=1541268.0There were optimizations on new versions which are not public (you'll need to pay a fee to get the miner), but some members are there to help to get the best performance of your cards with public miners.