When opening a folder in PW Web Version with a large number of documents (10K+) the folder will wait to load ALL pages of results before displaying anything, while the user has to wait.
There is only 500 files maximum displayed on first page anyway, so it would be more optimal to show these first 500 results to the user ASAP, and then continue to load the remaining (9500+) in the background, rather than making the user wait for ALL to load before displaying even the first page of results.