McArthur feels Latics have only themselves to blame for coming away from two of their three matches with less than they deserved.
"We've got four points but we all know it should be at least six, maybe more," he told the Wigan Evening Post.
"It's okay but we want to be better than okay. We've set ourselves some stiff targets here and we want to be winning more games.
"Even against Chelsea we put in a good performance.
"We'll be looking to take stock during the next fortnight and hopefully come back even stronger."