Draping settles the cloth over the figure before it does any simulating. The figure doesn't move at all for this, which is why it tends to go faster. I can't promise doing it my way will not take hours. Depends on your computer and the complexity of the clothes. If it is taking a few hours, it sounds like that item is rather complex and not very suitable for cloth room. Just because you can clothify something doesn't mean it will work very well.

In all honesty, if all you want is to make it fall better over that one leg, I'd go with deformer. They are not all that difficult to do really.

Select the skirt, then go to "Object/create magnet" this will create a magnet (as well as a base and zone) centered over the skirt. Move the base of the magnet (and scale it down) so it is placed right over the leg then and move the zone so it covers the area you want to adjust. Then it's just a matter of moving the magnet itself. It really isn't that bad. No worse than setting up the cloth simulation or any other moderate task in Poser. Probably easier that some things you've done.

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