Goals from Oscar and Eden Hazard gave the hosts a hard-fought 2-1 win and maintained the leaders’ 100% home record this season.
But despite opening a nine-point lead over Manchester City Mourinho was not happy – with himself, his players or the home support.
He said: “Everyone knows how much I feel connected to this club and the fans,” he said. “At this moment it’s difficult for us to play at home, though, because playing here is like playing in an empty stadium.
“The team then starts playing like it’s a quiet, soft game at home. It’s difficult to get that strong start where the players, team and fans at Stamford Bridge (are all together).
“I was today looking around and it was empty, but not in terms of people because it was obviously full. That’s what is frustrating.
“It was a completely deserved victory, but not a good performance. We had good periods, and some moments of good reaction to negative periods, but I didn’t think we played our complete game as we normally do. It was my responsibility. I was not intense, they were not intense.