After unshelving a game project that had been gathering dust for about a year, I found that the performance I was getting now via cordova/XDK is considerably slower (fewer than half as many fps) than it was getting via CocoonJS last time I had worked on it. I've compared old exported builds I had lying around to the ones being exported now, and the difference is pretty baffling.
I've been keeping my C2 download updated to keep up with the new features for other projects, so I'm not even sure what version I was using when it worked well, but I was wondering if any other folks have experienced this.