While Alan Archibald's side have enjoyed a productive start to the campaign, taking five points from their opening three fixtures before losing to Motherwell last weekend, the beleagured Buddies have yet to pick up their first win this term.
After crashing out of the League Cup to Championship outfit Queen of the South in midweek, Paisley gaffer Danny Lennon has come under severe criticism from disgruntled fans.
But Craigen knows Thistle can take nothing for granted when they make the short trip along the M8 today.
He said: "They are struggling. They got beaten in the cup and they will be really up for the game.
"They will be thinking, 'it is Partick at home, we want to take three points there'.
"Like last season, we want to take it one game at a time and that is what we are going to do. We need to put in a 90-minute performance and get the three points.
"We know that if we don't perform we are not going to get anything from the game. We have got to play well.
"You have got to look at the teams around you and they will be in and around us this year.
"We believe with the squad we have got that we can take points off anybody. We want to win every game.
"I suppose when it comes down to the nitty gritty you need to take points off the teams around you."
It has been a superb start to the season for Thistle and Craigen, with the forward seeing off the arrival of several summer signings to hold down a starting berth in the opening weeks of the campaign.
Archibald's side have adapted well to the rigours of top flight football thus far, and had to dig deep to see off Ayr and Cowdenbeath on League Cup duty.
Victory in Paisley today would be another major step forward and Craigen reckons the arrival of Firhill fitness guru Barry Stephen has played a big part in their success.
He said: "I think teams in the Premiership are a lot fitter. I think we have improved our fitness. We were fit last year but we have taken that to a new level this year.
"There is a better quality of player in the Premiership. If you stand off them, they are going to hurt you. If you make a mistake, they will punish you.
"I think there is a bit more respect for players because they have played at a high level. You can't let them play too much. It is about getting the balance.
"The manager brought Barry in in the summer and he was brilliant in pre-season.
"He has spoken to the gaffer and he has said what level he wants us at. He has done fitness tests and conditioning.
"Barry has been brilliant, he has brought in a new warm-up which has helped us as well."