After returning from a knee injury that put the Dane out at the end of last season, the defender is keen to find form after his impressive start to the campaign
The 26-year-old has started in all four of Liverpool’s opening games in the Premier League, after returning from a knee injury that put him out of the club's final games in last season’s campaign.
The Dane is happy with his fitness, and hopes to build on a strong start to the season, believing that he is yet to hit form, despite remarks from former Anfield legend Jan Molby who described the defender as being in the form of his life.
"The fact I got the full pre-season has helped me a lot. I feel a lot stronger, a lot better, but I still have more to come, hopefully,” he told the club's official website.
"I feel I can give some more, have more to offer, so hopefully I can carry on playing games and that will help me.
"Fitness-wise I am happy right now, but as the season carries on you get more games under your belt and you get stronger, quicker and better.
"It's difficult to compare to other years or games. It's so difficult for me to say something like that.
"But I feel really good now, I feel comfortable but as I said, I feel I have more to give and so that's what I'm working at."
Liverpool face Tottenham Hotspur in their next Premier League game on Sunday, and will be looking to put their 1-0 defeat to Stoke City behind them.
Agger added: "It was disappointing, of course, because we wanted to get more out of it, but it was just one of those days and we just have to carry on, work hard and aim for the next game.
"But no matter how you've played, you're always down if you lose. I will always be down no matter how we lose. The rest of the lads were as well because it was so disappointing.
"We don't want to lose games like that. We need the points and we need to get as many points as we can. It was a game we could have taken all of them.
"You have to give Stoke credit. They got what they wanted and played how they wanted, like they normally do, so I think we have to give all the credit to them because they got the result and we didn't."
Agger is used to fighting for his place at Liverpool, and this season is no exception, with Kenny Dalglish enhancing the defensive line up with the likes of Uruguayan, Sebastian Coates, but believes that this can only help as players compete for a first-team spot.
"I haven't seen too much of him yet, but he's a big, strong guy and I hope he will be well suited to the Premier League," he said.
"I have been here almost six years now and every year there are new players coming in and players going.
"It is normal for a big club like Liverpool to bring in players to add to the competition. Everything changes every year, so it's good to have healthy competition as we have now. It's good for the club and the players."