Yes, we will definitely see him play better than this as the season moves on. We will have more control over some games, which will make it easier for him,
We will see some fantastic forward passing from him, and a couple of great goals.
But we will also see this again and again.
That is why you don´t spunk 70 odd millions on a guy in the latter stages of his career.
Look at almost every old United player that you like/love.. Scholes, Robson, Keane, Beckham, Rio, Hughes, Evra, Carrick, Park, Pallister, RvN, Rooney, Ronaldo, Irwin, Rashford.. All joined the club at a relatively young age. Buying older established players usually ends up like this. We just bought Casemiro (and Varane), and it already feels we need to find proper replacements.