I have upgraded from version 1.1 to version 3.1 on my samsung galaxy tab s2 3g (P5100).
The rom feels much slower then the previous one
Abysmally slow. I went back to Candy5. It's slow but nowhere near as slow as this one. I was reading posts about the new life others posted and I wasn't seeing it at all. Considering going back even further just to have a solidly functioning, albeit old, tablet. It's not my daily tablet, one I like to have around as a just in case, but given how slow it was, if I can't get it back to where I don't have to wait seconds for it to respond to a tap on the screen, I may just retire it.
I've cleaned flashed, deleted everything, have gone back to basics but the C6 is brutally slow on mine.