Hi,
When syncing a dataset from SQL server to Terada, DSS submits a series of batch inserts. As of the latest release today, it is not using the specific Teradata utilities you mention.
In the specific case of syncing between Teradata and HDFS, we do use the fast TDCH method: https://doc.dataiku.com/dss/latest/connecting/sql/teradata.html#fast-sync-using-tdch
To check if there can be any optimization, can you please add a screenshot to your question with the output dataset "Settings > Advanced" tab ?
Best regards,
Alex