SortList becomes slower as list is bigger..

Baring in mind that the list is always going to take longer to sort as the list gets bigger, no matter what you do. Please take a hard look at what you are tring to do.

You can double the speed, on a pc twice as fast (Was that glib or what)
10000 Sorts will probably always take "seconds"

I Know Im being vague, but what Im tring to say is, try not to have to sort through a list of 10000 things, unless your a turn based game, no matter what clever algorithim you use

So you lookup sorting algorithims that are faster for whatever data smaple you expect. But dont expect a super fast one.