Disable gzip compression on Backups?

Is there any easy way to disable Gzip compression on the Backups in FreePBX? I notice it can take some time to gzip up voicemail and CDR’s, to the point that I had to increase the timeout for PHP so backups didn’t fail.

That said I run backups to a remote system using ZFS with automatic file compression, so really no need at all to compress the data over here when backing up. So if any easy way to reduce the level, or turn it off, I would love to know…