I do agree with you, certainly hasn't hit the heights it looked like he would. Can only hope that whatever illness he has been suffering from has gone now and he can regain his fitness - I have no doubt that he's a quality player and will go on to prove that in the coming months.
Lovely finish against Derby as well; not sure our other forwards have the agility and finesse to score a goal like that (not that there's been an abundance of quality crosses recently to test the theory).