I think your plant looks lovely, but agree, it might be happier climbing than hanging. So maybe when you re-pot it, put it in a nice big pot on the floor with a trellis or a burlap climbing post in there with it, and let it go vertical? Or maybe if you just hang it about 3ft. lower the trailing stems could be trained to climb up the hanger.
If you want it to just stay put in the basket at that size, take cuttings when you need to thin or shorten the plant, root them in smaller pots and give them away to friends if you don't want to keep them. They do start very nicely as long as the cutting already has some roots showing. These plants are good air purifiers, and give you extra oxygen too.
Asking a forum of gardeners if your beautiful healthy plant is "too big" is sort of a foreign language to us.
As long as there's room in front of the window, there can't be too many plants and no plant can be too big or too healthy.
