Mourinho's Real scored a record 121 goals in La Liga during the 2011/12 season.
Spurs have scored 19 goals in their last four games, but Mourinho is reluctant to compare his team with Real.
"No, in Real Madrid, I had amazing, amazing attacking players and we managed to build the team in a certain way," Mourinho said.
"I have to be honest and say we have lots of good attacking players here but we need to give stability to the team because the team needs stability in the back to feel solid, confident – to [be able to] have a go. So we need to find that balance.
"It is a team thing, it's not just about individuals. We need to be able to play with all these attacking players and have the team with everybody ready to be organised defensively and not to give space to the opponent. And behind, we need to improve in some details – that's obvious.
"You look to our squad and incredible quality and numbers and options from midfield to attack and we are trying to find solutions and we are trying to be organised.
"Thursday for example Ben Davies played, I think, for the first time as a centre-back in a back four because before it was in a back five."