The win made it 8 league wins in a row for the first time in the Premier League era, but Koeman knows that every game is difficult to win in the Premier League.
“Not a 90 minutes good performance,” said Koeman.
“I think it took 25 or 30 minutes in the first half to understand what we had to do better, I think Burnley started with more aggression that us and we found it difficult.
“After the first 45 minutes, yes, with the substitutions we made brought a bit more aggression and maybe a bit more football in the middle.
“They’re physically strong with a lot of aggression and we need to be prepared better than we were in the first 25 minutes.
“Another win at home is really important.
“We are breaking a lot of records! Every game is a difficult one but it’s the same for everyone.
“Everything is possible.”