Warne gave his thoughts to themillers.co.uk
"That's the difference. Taking your chances. I always thought we were not far away from scoring a lot of goals and today we took our chances really well. That is probably what has been missing in our performances because they have been excellent."
"I thought they started in the ascendency. I think Portsmouth are a really well-coached team. I thought they looked really well-organised. For the first 10 minutes, they were definitely on top without really creating anything.
"We kicked in and then I thought the longer the game went on, the stronger we looked. We're blessed that we've got a good squad and the subs don't make us any weaker.
"We went in at half-time 1-0 up and I think it flattered us a bit to be honest.
"The goal we gave away rattled the hornet's nest a little bit and the lads came through a bit of adversity and for 15 minutes, I'm not saying we were 'unplayable' but as good as you'll probably get.
"The lads buzz off goals don't they and it gives them super confidence, but the game could have gone another way.
"For us to beat a really good team - and I think they are one of the best teams we've had here, is a confidence boost.
"We have to enjoy the win definitely, and then we've got another tough test on Tuesday night."