Saints' 2-1 defeat against Burnley was their eighth loss in 13 Premier League home games this season – more than any other side.
“Sometimes it is a little difficult to play at home," he admitted.
“Against Burnley everyone expects that we are 3-0 up after ten minutes. It is a little hard to show this, this is a pressure guys aren't used to carrying.
“In away games no-one expects anything from us. Maybe that's the reason we perform better in away games."