It was a master class performance from Arsenal. This is the kind of performance they need to be putting on every week if they are going to have a chance to win the league. After their poor performances in previous it was only proper for them to reply with this kind of improved performance.
Improved the performance of a club and watch then becoming bravery strong in matches, they have top competitor but it doesn't mean because the best results is yet to be recorded. If Arsenal continue with thus magnificent performance, they will surely find themselves sitting first position on the EPL table this season. Mikel Arteta just have to exert more strategies for his team to couple with for the primary targets to win upfront games with ease efforts. Arsenal doesn't have to struggle when winning matches, for instance in today's game against Crystal Palace, they calmed and nets 5 goals against their visitors who were competing.
For me I think Arsenal misused their chances of exerting a firm grip at the league table earlier in the season when Manchester City were struggling to get good results. Now that both Manchester City and Liverpool are playing good games now and Tottenham coming with great speed it will be difficult for Arsenal to get to the top of the table again.