Description
I find it a bit unfortunate that a quite common case (ordered groups) is 5-15 times slower with flox installed than without (pydata/xarray#7730). One option is to prefer engine="flox" if group_idx is ordered.
Is that something that could be considered? Or would that cause problem for the duck array support as discussed in engines?
I thought about opening an issue in numpy-groupies to add reduceat but maybe it's more relevant here.