Nah it's just different areas of the pitch make people play different ways. Nothing wrong with him, on the left he just a bit in a tunnel and like everyone, wants to take it on his right foot because the player he is. On the right that drives him to be a creator and not a scorer.
And yes, on the right he can cut in and shoot but he's mainly right footed so he'll naturally lift his head up far more. Players don't play the same on both wings, it's rare that they can even play on both these days. He's a different type of player when playing left wing vs right wing. Just a much higher ceiling on the right, he's more patient, makes better decisions, more composed. Kind of like Nani, he was always far better on the right for me. Decision making went down the drain on the left.