The Clarets have scored just five goals in the campaign and have failed to win any of their nine matches as they currently sit bottom of the table.
Arfield feels that the mood in Sean Dyche's squad is still upbeat, but he believes they need to start finding the net with regularity sooner rather than later.
He told the club's official website: "You get fewer chances to do what you do in the Championship and when you get them, you need to put them away.
"I think we've been a bit naive at times when we've been through and maybe we should score and that sometimes makes it a different game. But we're all staying positive and we know it will come."
Burnley face Arsenal at the Emirates Stadium in their clash later today.