The 24-year old Northern Ireland international netted the goal that allowed 'Gers to take the lead 3-2 against Old Firm rivals Celtic at Ibrox yesterday before Naismith added his second for a 4-2 result.
Lafferty was in great touch late last season, scoring seven goals in his last six matches, and has franked that form with three in four this campaign.
Naismith feels that the former Burnley man is now showing what he can do after at times looking lost as a striker when he was more at home on the wing.
"Laff was unlucky to get injured in pre-season after producing the goods at the end of last season," Naismith said yesterday.
"He and Jelavic had a great partnership and he showed again today he's stepping up to the plate.
"He's been here a while now, knows what it's about and hopefully he's turning into the player everyone knows he can be.
"I think he's ready to play up front, he's getting stronger and is realising about bringing more of his team-mates into the game if they're in a better position than he is.
"Just like me he got his first Old Firm goal today so it's good for him."