Slot was speaking after defeat at Brentford on Saturday night.
Asked for reasons why Liverpool are struggling as much as they are this season, Slot said: "It's definitely that, I have said many times already, teams have a certain playing style against us, which is a very good strategy to play and we haven't found an answer yet.
"Every time going 1-0 down doesn't really help as well after five minutes. It's a bit of that, that teams know which strategy to play against us. We are still, even today when we don't play well, able to score two goals and create more chances than only the two we scored from open play.
"But you cannot even compete, which we don't do at the moment, we don't compete up there because we simply concede too many goals and that is not something I only look at our defence, that's something we do with 11 players together.
"Yes, it definitely also has to do with if you change quite a lot in the summer then I think it's not a surprise that it can go a bit like this. But I didn't expect it to go with four losses in a row, let that be clear.
"That it is always a bit of a bumpy road if you change, that is not so surprising, but four losses in a row and I don't know if that has been as an excuse but from the last six games we have played, there have been five away. So, sometimes this is also not really helpful if you are on the run of form that we are."