By ESPNSTAR.com staff
City are currently unbeaten this season after defeating Chelsea 3-2 in the Community Shield, before picking up two wins and a draw in their opening three Barclays Premier League matches.
However, the Citizens defence has looked slightly suspect after conceding five goals against the likes of Southampton, Liverpool and QPR.
Still, Kompany believes there is nothing to get overly worried about, although he admits they are yet to hit their peak.
"We have seven points out of nine and won the Community Shield against Chelsea so things haven't started too badly," he said on the club's official website.
"We have had some really good periods in games, but there are areas we need to work a bit harder on. We're not dismantling teams at present like we were at this stage last season.
"Everything was flying in this time last season, so we were effectively winning games earlier and making things easier for ourselves."
The Belgium international also believes his defensive counterparts have been performing to their usual standards so far this season, and that City have been punished by their opponents' clinical nature.
"We generally give very few chances away, but when we have so far in the opening weeks, we've been unlucky because teams have punished us," Kompany added. "I think we have defended well overall.
"I think this season will be a lot more competitive than last year - just look at the talent that has come into the Premier League during the summer.
"I don't think any sides around us are weaker - they have all strengthened so getting victories at this stage of the season is the most important thing."
Roberto Mancini's men are back in action on Saturday when they take on Stoke at the Britannia Stadium.