In fact, the Arsenal team once performed exceptionally well. In earlier days no other team could have secured victory easily with Arsenal team. But currently the performance of the Arsenal team is not consistently good. Compared to previous performances, Arsenal are far behind now.
From the start of the season for 26 matches, Arsenal has managed to secure the first position in the standings, indeed it is extraordinary, no one can replace it and maybe most people have assumed that Arsenal will be the winner at the end of the season. But it turned out they were wrong, after several players suffered an injury Arteta lost the balance in terms of form and resulting in Arsenal losing their last few matches towards the end of the season. This is very painful but indeed nothing is impossible. Guardiola was extraordinary, he managed to win consistently, bringing the club up in every game with a very satisfying ending. The Citizens have managed to secure the Premier League title this season.
Arsenal failure in those games they lost was a motivation to Manchester City, if you check the performance of Manchester City earlier in the season they were not consistent but when Arsenal began to lost in their games Manchester City gain motivation. and if Arsenal were still consistent in their good performance I don't think they would have lost it to Manchester City.