Hudl2?

Switching on my Hudl2 swipe the screen lock nothing so it turns off 4 times eventually the lock swipe works. Then find the shortcut icon buttons don't work then after a while they do, very annoying.
Using various other buttons they freeze. Youtube watching video's Israel "Iz" Kaʻanoʻi Kamakawiwoʻole I Z the Hawaiian singer Who's sadly died at age 38.his rendition of 'Somewhere over the rainbow' is the first time that song brought tears to my eyes.

Trouble scrolling would not work this happens on other videos not just his one.
In short these buttons/icons are intermittent far too often they stop working. Any reasons for this as the last attempt when fully charged would be to do a factory reset. If that don't work it goes back to Tesco (its 5days old)