It's just a pre-season match so some football clubs don't play well because they want to show their true strength when the league they are living has started.
Yes, definitely.
If they are too insistent on showing off their skills, they are afraid they will actually get injured. This will be detrimental to both him and the club. This pre-season match is one of the trials of how the club as a whole, at least, usually they play almost all of their players in turn to find out how their composition and strength will be.
For the start of La Liga later, it looks like Real Madrid has been prepared to chase goals in every match so that they can occupy first place in the standings.
One challenge for Real Madrid is Barcelona because for other clubs I'm sure Real Madrid can beat easily but for Barcelona it's not as easy as we think.
And at the very least, Real Madrid must always be consistent in order to continue to be in first place. I remember last season how they played very well from the beginning to the middle of the season, they even held the first position for quite a long time, with quite a point difference from Barcelona. but in the end they slipped and were unable to maintain their 1st position, and were even almost overtaken again by Atletico Madrid. Maybe because last season they were only too focused on the UCL which also failed in the end.