Dynamics 365 CRM bulk load option

Hi,

anyone have a good suggestion on making "Upsert" action to an custom entity in Dynamics 365 CRM.

I have a message with 4000 rows that needs to be updated/inserted, and I need it to be done once every hour.

Right now I split up the message and send 4000 individual messages to the adapter (Dynamics CRM web api), and that takes 15 minutes.

It would be nice to have an option to bulk insert the data via the adapter and have it done much faster.

Any ideas?

Thanks in advance