The host nation saw their Group A campaign suffer a blip on Tuesday night as they were held to a goalless draw by the Mexicans.
However, Scolari is satisfied that his players are getting better as the tournament progresses.
"In my opinion - it's my own, not that of the critics - the team played better than they did against Croatia," he told FIFA.com. "There was at least an extra 10% than what there was against Croatia.
"The team has evolved. We can still improve, but we can still qualify for the next round. We showed quality, so I am satisfied."
Brazil play their final game of the group stage on Monday when they face Cameroon.