Very Slow speed Backing up VM on ZFS

[milocheri]

Hello, good afternoon, i have 2 SATA Disks (4TB Each) on a ZFS pool, and 1x500GB Windows VM running there, i setup a remote PBS server, and run a Backup task, however the datatransfer rate for that it is very slow (read: 16.8 MiB/s, write: 16.7 MiB/s), PVE (Dedicated Server at OVH) and PBS (GCP VM) both have 1GB bandwith, what can i do to speed up the datatransfer ?

Thanks!