Cadiz is not a suitable opponent for Barcelona, this victory is not surprising because in terms of quality the Barcelona team is much stronger than Cadiz.
Currently Barcelona is playing pretty well and they just need to maintain consistency to be able to win the La Liga title this season, and all of this is inseparable from Real Madrid's poor performance so that this moment can be used very well by the Barcelona team to continue to keep the distance at the top. standings.
Barcelona must be very careful as Real Madrid won't waste any opportunity to win La Liga. They have enough ability to turn 8 points difference to 0 and can take La Liga trophy from Barcelona at the end. Not many clubs in La Liga can get points from Real Madrid especially when they return to their good form. Look at how they won against Liverpool, it is like the past season sentiment is still in the air. They are not broken easily and can turn the match over very quickly.
but for Barcelona's performance I think they are not optimal and there are still many things that need to be fixed, we can see the shortcomings when they play on the European stage.
In Europa League, Barcelona lost at Camp Nou and their match in Old Trafford will be very challenging for them. It's not easy task to beat Manchester United more than 1 goal difference at Old Trafford but it's possible for Barcelona to win in extra halfs. They mostly get La Liga and Europa League is a good cup in the Europe too.