Arsenal winger Willian believes he is struggling to find his best form as he has not yet adapted to his new club's playstyle.
Willian signed a three year deal on a free transfer from Chelsea in the summer.
But the 32-year-old has only managed three assists this term, with two coming in the very first league game of the season.
Willian told the club's official match-day programme ahead: "Well it's never easy changing club, especially after being somewhere for so long.
"I was at Chelsea for seven years before coming to Arsenal and then you have a new club, new people, a new philosophy.
"Things are different so I'm still adapting but I feel good, I have been learning a lot – a new footballing philosophy.
"Everyone is great here. I know I can improve a lot, and of course my performances on the pitch can be a lot better."
He added: "The first game was great for me, against Fulham, I felt I had a good performance and gave two assists. And then, I don't know.
"I'm always trying to do my best, sometimes things don't go the way you want. You have to say it's a part of football and a part of life.
"Sometimes you have good moments, other times you have bad moments, you have to learn from that.
"And right now, I know I'm far away from being at my best, but I'm determined to work hard and change this."
