I want to add items in bulk (around 13000 entries) into the SharePoint list using the JavaScript. For this I have already user CSOM Client Context Batch insert code and also I tried the SP.Services() for bulk entries. To complete the entire process, it takes average 13/14 minutes and that is too much. I want to speed up the process, is there any other way that I can achieve this faster.
FYI :- this is not the 1 time process, this can be multiple times.
Please suggest.