Atletico Madrid have made a similar start to Real Madrid in the league by the way. Nearly everything was going to be the same if Atletico Madrid scored one more goal. 
Do you think Atletico Madrid will stay in the title race this season? They have made some good signings for the attacking line such as Sørloth and Alvarez. Maybe Alvarez couldn't improve his performance yet but I believe he will in time.
I still think that Atletico Madrid are definitely able to be candidates in the title race this season and even if Atletico Madrid cannot win this season in La Liga because of the strength of Barcelona and Real Madrid which are still quite good, at least Atletico Madrid can still aim for the top three and top four positions for this season. Because Atletico Madrid is still considered a good team even though the arrival of the two players you mentioned has not been able to make a big contribution to Atletico Madrid, but as you said, Alvarez can certainly get better over time this season. Do you think Atletico Madrid will stay in the title race this season? They have made some good signings for the attacking line such as Sørloth and Alvarez. Maybe Alvarez couldn't improve his performance yet but I believe he will in time.In fact, Real Madrid, which basically brought in great players like Mbappe and several other potential young players, in reality Real Madrid still failed to start this season perfectly. So, if a team like Real Madrid can also fail, especially a team like Atletico whose quality is basically below Real Madrid, then of course Atletico can also fail even though they managed to bring in great players in the last transfer market.
But even so, of course Real Madrid and Atletico still have the same chance to be candidate teams for the trophy this season. Because after all, basically La Liga will always be related to the three teams and they are Barcelona, Real Madrid and Atletico. Although sometimes Atletico also has difficulty staying in the top three, but over time Atletico has always managed to finish in the top four.