I can confirm that Devianttwo has done a lot of good work with this pool and the performance issues have been stamped out.
This is the best time to jump on board if you want to benefit from PWC's success.
dont mean to sound like a dick, but did the performance get worked out because there is such a small hashrate?
No. the performance issues have been worked out because the Difficulty is much higher now.
Note: The performance issues where due to receiving more shares per second then the actual database could confirm. this was due to me setting the retarget bit to low. Which has been fixed since