You are right. If Chelsea can qualify for the Champions League, it will be a big achievement for them. At the beginning of the season, Chelsea was outside the top 10 of the points table for a long time. We have seen very irregular and weak performances from Chelsea. However, at the moment, Chelsea is able to perform consistently well. And at the moment, Chelsea is fighting to be in the top four of the table.
All that Chelsea wants this season is just to qualify for the Champions League, they just want to end the season in the top four. Chelsea is not really fighting for the league title because they know it’s going to be difficult for them to achieve. Chelsea's performance was just so poor last season, but we can see improvement in their performance this season, even as their performance has dropped recently, but they were able to secure a win in their last match, and they are back to the top 4.
I am not really confident that Chelsea will be able to end the season in the top 4 yet. Chelsea will have to improve their performance if they want to maintain the top 4, which they are currently in. Their performance has dropped recently, and they ended up losing and playing draws in matches that they are supposed to win.