I was comparing it to the OG Kindle Fire because it was the first real Android tablet and it's old as dirt now. Also as mentioned in the other performance vs stock thread when running the default Nook HD+ OS the interface is a lot more responsive and games perform better too. It seems like there's something missing between those kernel's/drivers and the CM version.
Of note these commits might help us with some of our issues. It looks like they're enabling a 128 MB swap partition for this device.