I noticed recently that ElasticSearch supports a search_after parameter to allow more consistent pagination of query results:
This effectively works by asking for a page worth of sorted results that come after a unique id (tiebreaker). This could be a page content ID in the case of Episerver.
This approach is more reliable that simply asking for a page worth of sorted results that come after some date & time field - because two documents can have the same date & time, which can result in duplicates appearing at the end and beginning of subsequent pages of results.
Can you please add this search_after option to the EpiServer Find client API?