[android tablet] Hudl 2 Acting up after Lollipop 5.1 Update

[Tesla]

Anyone else have the Hudl 2? Since the update to 5.1 it's dreadful, wont update any apps due to low storage, even though there's a gig available, very slow and sluggish, and very often wont wake up from being locked, i'll press the power button, the screen will light up but wont display anything, it then flickers on and back off as if i've double pressed the power button. I don't think its a connection issue as when i do get it to unlock, it doesnt flicker.

 

Anyone else done the update and had these problems, or had no issues at all?