the delay of autocomplete combobox

[KingViker]

I have a select with three hundred fifty items, when I click the arrow-button,there is a two or four seconds delay before showing the suggests.so I wish it will be a more friendly performance, like:every time it have a more fifty results,then append to the end of the ul list. In this way , users needn't to wait the whole resluts,just need several millseconds for the frist fifty results.

in the end,I want to see ,I also have a select with five thousand items,so ........

[Scott González]

You shouldn't autocomplete with that many items. Filter the number of results you show.

[KingViker]

Maybe I have a abnormal demand, I just want autocomplete to have a more perfect performance.