Barcelona's recent matches have not been good, although they have won three of their four games and drawn one... Barcelona are conceding a lot of goals at the moment, which indicates problems in defence... Of all the La Liga clubs, only Real look very good right now... I think that this season Barcelona will have more problems than last season, when they became champions...
It's still early in the season and there's still a lot of time for the teams to improve, Barcelona currently looks weak in terms of defense but Real Madrid also has problems in the front line, in the last few matches Real Madrid has had quite a hard time scoring goals.
So I think these two top La Liga teams have different problems now, but how these teams can handle them and get out of these problems will be profitable for them to be able to chase the title this season.
Barcelona and Real Madrid have problems in different positions, Real Madrid has not found a suitable player to replace Benzema, Ancelotti can only rely on Vinicius as the main striker but he is currently injured. Barcelona's defense is not yet completely unified, they have not found their best form like last season, but Xavi has enough players to carry out several experiments to find good connections between the defenders.
There is still time for Real Madrid and Barcelona to improve. Real Madrid only needs one player who can be relied on in the striker position, Ancelotti must encourage Real Madrid management to immediately bring in a player who is worthy of filling the main striker position in order to maintain opportunities in the Champions League.