After watching the whole thing, I didn't feel the performance was all that bad. The thing everyone has to keep in mind is that the Justin Timberlake comparisons aren't fair, considering the fact that Justin came from a boy band that incorporated a lot of choreography in their videos, performances, and tours. 1D, by comparison, didn't do nearly as much in regards to that, so I can understand why dancing may not be his forte, but at least he's trying. When I look at some of Zayn's early solo performances, he didn't always look 100% comfortable, which we later found out was as a result of his stage fright, so who's to say Liam isn't going through the same thing?