Hm, my HD+ is fairly smooth. Not anywhere near what a Surface Pro is like, but smooth enough for everyday use.
Have you tried restarting the device?
Yep... Restarting does not improve the touch response. In some sections, scrolling and gestures are fine like when reading a book or magazine. But in other areas, such as scrolling through my Library, or through B&N books and apps on SHOP, and especially in the BROWSER the response is terrible and seems to be getting worse and worse.
Amen to everything you said!