Iam having a dropdown whose source is thread level datapage with connector-rest.The dropdown values will be fetching more than 6000 results which is taking a while to load the values.In order to make it pre-ready, we tried to preload the dpage values on defer load, but now we are facing the section loading for a while.

Also tried Async Load datapage but we are having some restriction for datapage source to be run only for external auth user and not async requestor.

Any approach to keep the dropdown values pre-ready without any performace issue?