Apart from BBB, i can say create multiple client instance and distribute the save sets across the client instances. i don't think we do not have any other option to skip file scanning. BBB is capable of doing that  but you said you dont have AFTD or DD device as a target.

Thanks..

Deb

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GibinG 

     If you are using a NTFS partitioned file system you could try and enable "NetWorker Uses change journal" and "Enable Change Journal for selected Volumes" in the "Networker Change journal Manager" on the respective system.

     Do let us know if there was any improvement in performance.

I do not see networker support for windows change journal in admin guides 8.2 SP1  onwards , i think this was there in 8.0 .

Also , it cannot work if you are using VSS on the FS . We are using VSS for hourly file recovery as well.