No, the extra time will not increase your score for these quests, but it may help you get a higher score more easily since you have more time. For example, the maximum amount of points you can get for Illusen’s Glade is 2000 points. With this Premium Perk, you will have 33 min 20 sec to complete a quest. If you complete one of her quests before the timer reaches the halfway point (16 min 40 sec), you will receive 1000 points.