Hello Carl Berisford-Murray,
Many factors impact snapshot performance, including the hardware configuration, concurrent access, network bandwidth between the source and destination data stores, and location of source and target data stores.
Ex: if Partner 2 has a slower network connection or is located farther away from the source data store than Partner 1, it could take longer for the snapshot to complete.
To troubleshoot the performance difference between Partner 1 and Partner 2, please review the network connectivity, system resources, and configuration settings, which can help identify potential bottlenecks and optimize the data processing time.
I hope this helps. Please let us know if you have any further questions.