I sometimes find that what you cook the ribs in may be too greasy to reduce and make a sauce. You could make up a new batch (small) and apply as you broil them to crisp them up a bit. You could also put them in a 500 degree oven for a few minutes. Personally, that's what I would do. Since you have these beautiful Asian flavors going on, unless you just want to brighten those same flavors, nothing else but a bit of crisping up is needed.
Now, if you like spicy hot you can add a bit of chili garlic paste to your sauce - - sparingly!