The Germany international believes his side have work to do before the new Bundesliga season gets under way, with many players not 100 per cent recovered from Brazil 2014
Several members of Pep Guardiola's squad were involved in Brazil 2014 as Germany won the competition for the fourth time, while Arjen Robben starred for Netherlands, who finished third.
Just over a month on, Gotze, who netted his country's winner in the final, is still looking to build up his fitness before Bayern's Bundesliga campaign kicks off against Wolfsburg on Friday.
"We can be relatively pleased," the attacking midfielder told the club's official website after netting in a 4-1 victory over Preussen Munster in the DFB-Pokal on Sunday.
"The early goal was important. What mattered today was making the next round. We've reached a good level, but we know that we still have work to do on our fitness."
Philipp Lahm echoed his team-mate's belief that Pep Guardiola's men are not yet in peak physical condition but was still delighted to progress in the Pokal.
"We were determined to make the next round," the captain explained. "We’re obviously not at 100 percent yet, but we need matches to get there."
Thomas Muller, David Alaba and Claudio Pizarro were also on target in the 4-1 win at Preussen but star summer signing Robert Lewandowski missed a late penalty.