My recommendation would be to review how you are conceding chances/goals. Where are you players positioned when you lose posession?
I'm wondering if you are conceding goals on the counter? Lower ability teams will likely look to soak up the pressure and hit you on the break, and a ball winning midfielder is poor at holding position. playing on positive you may find that you have a lot of players far up the pitch when you lose the ball
I'm no expert but if that is the case you could try balanced instead of positive when away from home, or using a halfback to drop in and help the centre backs?