Yes, he looked poor but he only had 20 minutes to be fair. At times he looked a bit sluggish for us as well but he is certainly capable of scoring goals.
From memory, his performance showed 3 runs, 1 ending in a foul to Fulham, 2 tackles both won. His only real shot at goal was far off target. And it seemed every time he was on camera, he was gesticulating to his teammates to pressure Fulham. But as has been said, he wasn't given much service by an abject Newcastle side.