Adam McGurk believes Pompey have wised up to sides ‘parking the bus’ against them.
The Blues go to Leyton Orient on Boxing Day looking to stretch their unbeaten run to nine games.
I think we are starting to understand different ways of breaking teams downAdam McGurk
Ten goals have arrived in the past two home fixtures in that period, as Paul Cook’s side build momentum.
That’s not been the case for much of the campaign, however, with Pompey often finding it hard to break down outfits who play against them with a defensive mindset.
McGurk, however, feels the team are now showing the nous needed to be able to unpick those teams.
He said: ‘Everyone can see what most of the teams are going to do at home.
‘I can’t think of many teams who have come and had a go.
‘We’ve played enough to understand that is going to happen.
‘Without giving game plans away, I think we are starting to understand different ways of breaking teams down when they are coming and sitting behind the ball.
‘Hopefully we can keep improving and realise what works when people sit in behind and what doesn’t.’
The 6-0 romp over York City last month really got the goals flowing for Pompey.
McGurk felt there was a slice of fortune there in a game which has sparked a run of four wins from five games.
The 26-year-old also highlighted the impact of new faces Marc McNulty and Caolan Lavery.
He said: ‘The new boys have come in and done their bit. They are good players.
‘There was the 6-0 game against York and that was a good time to lay down a statement.
‘Things dropped our way that day with the man being sent off but we’ve kicked on since and things have been good for us.’