So far, Real Madrid's performance has been good and cannot be considered bad. The defeat to Lille in the Champions League and only drawing in the derby match are just part of a normal game even though it applies to a team as big as Real Madrid.
The match against Villarreal for round 9 of La Liga remains an important match for Real Madrid and for Villarreal, the match is also an important match to find a safe position because currently Villarreal only has a 1 point difference from Real Madrid to be able to move up to second place and 4 points difference with Barcelona at the top of the standings.
The match is really important for Real Madrid to win so that Real Madrid can still maintain its position in second place in the standings. Because when Real Madrid is very aware that their position can be taken over by their opponents when they lose the match, of course the Real Madrid players will try to play as well as possible. And I think Ancelotti will also give enough direction to all his main players when the home game takes place because as you said that Real Madrid should not be considered weak as long as there are still many good players in their current squad.