During a match, play a Clock Speed card at the same time as another gameplay card to slow down time and extend the duration of its effectiveness.
Easy Scoring
You can score goals a lot easier by getting into the opponent's box. Do not sprint while in there and move closer to the keeper. When he comes out, hold L2 and press Circle until the power bar is about half way full. You will lob the keeper and score almost every time. To score easy goals do a Finesse Shot (L2 + Circle) for a more accurate, placed shot. It is very good for short or long shots.
Replaying matches
When you haven't completed an objective you would probably like to replay. To do that save after every game you play if you're happy with the result. I tried that and it worked well.