Over the past weeks, the City in the Premier League broke Liverpool, Watford and Crystal Palace, scoring in the gate rivals 16 unanswered goals.
Despite such a phenomenal game, Guardiola believes that his wards are capable of more.
"We are putting on the field as a sign of respect for our fans, but at the same time we respect our rivals," said Guardiola.
"Before the fight with Crystal Palace, people thought that everything would be easy for us, but you yourself saw how difficult the first half was".
"We are playing very well now, but this is not the limit for Manchester City. We can improve many, many aspects of our game, "the Spaniard.
Earlier, Guardiola praised the next opponent of City in the Champions League - Donetsk Miner.