It is true. La Liga competition is simply more competitive than Bundesliga. There are more strong teams in La Liga, Lewandowski can't easily score as in Bundesliga. Age, teammates, and tactics also have big impacts on Lewandowski's performance. These are basic factors that directly bring serious effects on Lewandowski. So, we can't compare his goals during in Bundesliga and in La Liga.
There are so many strong teams in la liga and bundesliga. There's no need to compare any league caused by they have their own characteristic. I think that if you were not even watching it correctly.
It's better for you to read this article.
https://www.bundesliga.com/en/bundesliga/news/robert-lewandowski-s-record-collection-bayern-munich-7764Lewandowski has been making so many record in bundesliga. Think about that. It seems like that you rarely watching bundesliga, right? Lewandowski's performance is not having a lot of differences when he came to the la liga.
He was able become the top scorer in la liga on his first season with barcelona. that's enough to prove if lewandowski is still a good striker while he gets even older from time to the time.
Benzema is almost surpassing lewandowski as top scorer in la liga right now. Benzem has less goals caused by he was facing injury during the early season.
in la liga there are 3 great teams, and of the 3 great teams two are dominant teams, there is constant alternation of who wins the title, so it is very difficult for Lewandowski to have the same freedom he had in the bundesliga to score many goals, in la liga league things are much more difficult than in the bundesliga, you don't have to be a genius to see that in the bundesliga there is no competitiveness, bayern is the undefeated champion, even when bayern are not doing well they manage to stay at the top, it is obvious that a good goal scorer being at bayern will score a lot of goals in the bundesliga, but it won't be the same if it's in la liga or premeir league, let's look at how haaland is, he's a great goal scorer, but he had a good luck playing in city what a good team
but even playing in a good team he has to work hard in the premier league and even if he were in the league he would also have to work hard, in the bundesliga the other teams don't have much investment in good players and they don't fight to win the league
The only fun thing to watch in the La Liga is the competition between Real Madrid and Atletico Madrid for the 2nd position now. Real Madrid don't seem to be very dedicated about it though.
real madrid knows that they no longer have a chance of winning la liga and they know that they only need to win a few games to stay in the zone that allows them to stay in the champions league, so there is no point in competing for second place, the focus of now real madrid is winning the copa del rey and then the champions league, atlético can take second place, that doesn't change anything, and even something quite useless