Pompey impressively knocked Peterborough off the League One summit last weekend.
Meanwhile, their next opponents were playing out a goalless draw with Oxford that leaves them 16th in the standings.
But Kenny Jackett certainly does not expect an easy ride when Wycombe visit Fratton Park on Saturday.
And he knows his side will have to adapt to facing various styles of play over the course of the campaign.
The Blues boss said: “There are many different games in a very good and competitive League One and you have to earn every point.
“We’ve seen in recent weeks that it doesn’t matter where your opponents are in the table – whether that’s Shrewsbury who were struggling or Peterborough who were top of the table.
"We’ve seen in recent weeks that it doesn’t matter where your opponents are in the table."
“There will be different types of matches and we’re under no illusions as to the task that lies ahead for us.
“But our points total from the opening eight fixtures is a positive and we’re pleased with that, so we’ll be looking to continue our good form.
“We have to get our tactics right as much as possible and use our substitutions, while the players have to make the right decisions.”
Gareth Ainsworth led the Chairboys out of the fourth tier last term and Jackett hopes a passionate home crowd can help his team.
He said: “Gareth’s is a manager who I have a lot of respect for and they’re coming off the back of a promotion season.
“They’ve attacked this division with plenty of enthusiasm and we’ll have to work hard to get something from the game.
“But we don’t focus too much on the opposition. We’re at a home and want to capitalise on having a large crowd backing us.”
Ronan Curtis limped off towards the end of last week’s London Road contest, but it was not a serious injury.
Jackett said: “He was fine by the middle of the week and has trained for us, so he looks like he’ll be okay for Saturday.
“Anton Walkes and Jack Whatmough are also both fully fit and available for selection again, which is good news.
“Andre Green has had a cyst removed from his ACL. It has obviously flared up and so we accepted his decision. Now we will look forward to welcoming back into the group when he’s fit.”