Restore VM at DR with DD & NW Clones

Hi,

We have a NW Server 8.2.2.4 with VBA and DD, we performing daily VMware Backup and Clones to a secondary DD on DR Site.

On the DR site we have a second VMware environment  with VBA  registered to the NW at primary site.

We are doing Full VM Restore via the Replicas from the secondary DD to the vCenter at DR. That kind of restores called "Resurrection" based on " VMWare Integration Guide" page 95,

The Restore complete successfully but the transfer rate is very slow 8MBps, the guide mention that this kind of restore are slow, but it does not explain the reason.

Why this Recovery are slow and is there a way to workaround so the restore be more faster?

Thanks