It took just 17 minutes of the first half for Pompey to get the job done against Gillingham.
Goals from John Marquis and Michael Jacobs were the highlight of a fine attacking performance for the visitors at Priestfield.
There were plenty more chances to extend the lead further – with the best of them a Tom Naylor header that came back off the post.
And Kenny Jackett was also pleased with the defensive solidity of his side as they left Priestfield with a clean sheet.
The Blues boss said: “Gillingham have started the season well and put a lot of pressure on you, but we got off to a good start.
“We could have had more goals and you do wonder if we might have needed that third one, although in the end we were able to see it out.
"If there is one criticism, it’s that we didn’t wrap it up with another goal, but we defended superbly and created a lot of chances."
“Our opponents throw a lot of men forward, so there is a lot of space to play in if you can get the ball down.
“I did feel that it was a decent performance – both attacking and defending – and John will be pleased with his goal.
“No matter how hard you work for the team as a forward, it obviously helps if you score and he led the line very well.
“It will give him plenty of confidence and also something to build on as we keep moving through the season.
“We’ve seen glimpses of Jacobs and he is a very good player. I’m sure we have to be careful with him, but he’s a positive character and can certainly handle the ball.
“The clean sheet was pleasing and we had to work hard for it towards the end with the amount of free-kicks.
“If there is one criticism, it’s that we didn’t wrap it up with another goal, but we defended superbly and created a lot of chances.
“We’ve got a good, committed squad and they’re determined to enjoy success. It’s my job to find the right balance for each game and maintain some consistency.”