Very slow throughput in Common Data Service as a Sink in a Pipeline

Dear Community hello,

I am facing an issue with Azure Data Factory when trying to import data from SQL Azure Database(source) to Common Data Service For Apps as a Sink. 

The throughput started from 9KB/s and keep on reducing to ~600bytes/s. 

Does anyone know how to resolve this issue and speed up the throughput?

Thank you in advance for your time and responses.