One of the things that i do not like about Celestia (and every other world in the game) is that it takes way to long to collect items when on a quest. For example, i had to collect 4 Bottles of Sealant from monsters in the Survey Camp. It took way to long. I suggest that you just make the first monster you kill give you the item instead of making you fight 30 monsters just to find 4 items.
I agree with brwac in that I don't believe this is going to change.
I can tell you one thing that I found helpful is as much as possible try doing this quest with other people. You get more enemies per battle and if you can find some fun people it helps the time to pass more enjoyably.