The Italian feels it unfair that les Rouge et Blanc are judged by the same standards as the French champions given they have only just returned to Ligue 1
After a blistering start to the campaign, les Rouge et Blanc have lost their last two games, bowing out of the Coupe de la Ligue after a 1-0 defeat to Stade de Reims before then dropping to third in Ligue 1 on the back of a 2-0 loss to title rivals Lille.
However, while Ranieri understands why Monaco have been heavily criticised for their recent form given their massive financial outlay during the summer, he feels it unfair that a newly-promoted side should bear the same weight of expectation as the reigning French champions.
"The current criticism is fair," the Italian coach told reporters. "But I have said it: it's impossible for Monaco to continue as they did at the start [of the season].
"Only PSG can only think of winning everything. Our team is good, but let's give them time to develop."
Ranieri is confident, though, that there will be a Monaco backlash at home to Evian this weekend after last weekend's loss to Lille.
"The team understood what happened; I'm convinced of that," the 52-year-old declared. "But the reaction will be important.
"Experience has taught me that things don't always go well. There are many twists and turns during a season but I think the team will play a good game.
"I'm positive; I do not think about defeat. But there must be a reaction. My players must feel a certain pressure to be at 100 per cent.
"In fact, they should play at 120 per cent. But it takes a lot of determination."
Ranieri also jumped to the defence of midfielder Joao Moutinho, who was slated for his performance in the loss to Rene Girard's men.
"Against aggressive teams, with his technique, he suffers a little more [than usual]," the former Chelsea boss reasoned. "But he's very intelligent and he will quickly understand how to play in France."