The fact that Girona is winning every game they play in makes their performance seem surprising to me as well, but I don't think they can win the league because Real Madrid, Barcelona, and Atletico Madrid are the three strongest teams, and Girona isn't strong enough to beat all the other teams in laliga. People believed that Barcelona would not be able to achieve any good positions this season after their opening league games ended in draws, but I believe that Barcelona's performance is improving because, when examining their matches, you can see that when Barcelona play their matches, they defeat their opponents.
This season's leagues are going to be difficult because many teams have improved their performances with young players, and if a team has young players and mixes them with older players, their performance will be good. Let's take Real Madrid as an example; Real Madrid has many young players and they have older players like kroos, modric, and cavaja; these players are Real Madrid legend players; they always teach the younger ones how to score goals and how to appear quickly, most especially kroos, he really makes real Madrid performance change any time in his in the field.
Isn't that what makes La Liga interesting? Instead of seeing Madrid and Barcelona continue to dominate the league, they have another team that they don't expect to be able to compete, which would be fun.
Regarding Gerona, 4 matches without defeat with 1 draw against Real Sociedad. that's good enough for Gerona. but they also got a win against a team that I don't think is very strong. but anyway this is a good momentum for Gerona to collect as many points as they can when they play against weaker teams.
however the new league starts, those who look powerful at the beginning can also be seen to be inconsistent in the middle of the season or even struggle at the end of the season.