The Reds currently top the table after victories over Stoke, Aston Villa and Manchester United and the 23-year-old expects their winning run to continue.
"We've got a lot of momentum after the first three games of the season," he told the club’s official website.
|12/1||Liverpool are 12/1 with BetVictor to win the title
Brendan Rodgers’ men beat champions Manchester United last time out at Anfield, courtesy of a Daniel Sturridge strike and Henderson admitted it had given the club an extra lift
"Beating Manchester United gave us a great boost and it kept the winning mentality and the momentum going,” he added.
“But we know that it's going to be difficult in our next few games, so we'll have to keep focused and hopefully we can keep putting in performances like that.
"A lot of the lads are now on international duty, but from the people who are here, there's a good aura about the place and hopefully when the lads come back, we can focus on Swansea.”
Henderson has started all three games for the Reds and says he has been pleased with the way he has started the season.
"I've been happy with the way the first three games have gone, in terms of my own performances, but there's always room for improvement,” he added.
“There's a few things I want to change in my own game, but I tend to keep them to myself, privately."