Maurizio Sarri was disappointed after Chelsea’s goalless draw with Everton and admitted his team have been below their best in recent matches.
Chelsea remain unbeaten under Sarri but endured a frustrating afternoon at Stamford Bridge.
And boss Sarri feels they should be creating more chances with the possession they have had.
“To be honest I didn’t like the first 25 minutes very much,” said Sarri.
“We started the match moving the ball very slow and it was impossible for us to be dangerous and very easy for the opponents to defend.
“Then I think we played a very good match. We were a bit unlucky. I am not happy of course but I think we are in the right way.”
Sarri played down suggestions that fatigue might have been a factor for Chelsea, who had problems against Crystal Palace last weekend and were also unconvincing in Thursday’s Europa League win against BATE Borisov in Belarus.
“I don’t think the problem is a physical problem,” he said.
“In the second half we played at another speed and another intensity, so I don’t think the problem is a physical problem.
“So maybe there is a mental problem. We have maybe have some difficulties approaching the match from a mental point of view. I don’t know. It’s very difficult to answer.
“As I said to my players, in the last three matches we created few goal opportunities in relation to how much we played.
“So in this moment maybe there is a little problem. But three matches is a very short time, so I don’t know. We have to be careful I think.
“Maybe in this period we have not been able to create for how much we played.
“For example, in the last match in the Europa League we played 81 balls in the opponents’ box but we created only four goal opportunities and I think we can do better.”
The result meant Sarri became the first new Premier League boss to avoid defeat in their first dozen games in charge.
“I would have preferred three points today than the record,” the Italian admitted.