The information here details out performance numbers for X-Author for Excel. These numbers are based on uninterrupted create, update, upsert and delete operations. These apply to clients 4.7 and 5.x.

OperationAverage Time (in seconds)
Retrieving 10000 records10.13
Retrieving 50000 records

51.64

Retrieving 50000 records and modifying 1010.65
Inserting 5000 records51.38
Deleting 5000 records34.11