How to increase performance of Combobox?

[patrickyan]

Combobox is useful for filtering a long select list of options. However, long lists seem to make Combobox laggy. With a country select list (250 items, fairly common usage), it takes about 1 second for the list to actually pop up.

[thomas-sc]

I have the same problem with a list of several hundred taxonomy items. Combobox is unusable for this, although in my opinion that is the purpose of a combobox with autocomplete. For a short list of 10 items I can use a conventional select list.
React-Select works fine with 1700 items, but it is not headless and much too complicated to style.

[patrickyan]

The solution right now is to use @tanstack/react-virtual to implement a virtualized list for <ComboBox.Options>