As @blue4eva77 mentions, those statistics are somewhat warped when you look at them in detail which suggest another point.He's scored 2 goals in 4 in the league, and 2 goals in 1 game in the cup. 4 in 5 overall.
Not clinical though?
Both league goals are in one game where he played very well, and the cup goals were against Barnsley. Not entirely poor, but not the best.
However, overall (as mentioned earlier) I think he's playing much better this season in a number of aspects involving movement and hold up play.
He just needs to start to convert the chances which are becoming more often to him. If he doesn't do that by say November then I will be worried.
It's just the usual GOT way: completely here and now where he's either the World's best or he's absolute dross. There is an actual in-between.