The result leaves Inter Milan top of the table.
“Our first half was a little tense, we made more mistakes than usual, but in the second created many chances. We didn't put the ball in the net, but did create the chances in the final third," Sarri told Mediaset Premium.
“It was a good performance, we were up against a Fiorentina side in good shape that countered dangerously and I see it as a comforting performance in terms of mentality, approach and once we shook off that initial tension, we had some really clear-cut chances."
Dries Mertens has scored only once in the last eight games, while Lorenzo Insigne was sorely missed.
“We only have to worry when we don't create chances, but now we are creating them. I was worried by Wednesday's performance against Feyenoord, not this one.
“I saw intensity, tempo and fast passing in the second half. We went through a rough period, but today I saw that movement off the ball again and we just didn't take any of the six or seven clear chances we created.
“Compared to the last few matches, we created opportunities with greater ease."