Sabnzbd unpacking is killing my CPU

Data Array - xfs - allspinning rust


cache - btrfs - sata ssd

Balance and scrub are disabled


download array - zfs - striped m.2 NVME


The download array used to be xfs but I converted it to zfs once i read that xfs could be the cause of my issue.

I have tried to pin CPU cores on Sab but that has not seemed to work (i gave it 4 cores and it's accompanying thread)

*Arr -> Sabnzbd -> /mnt/download/incomplete -> /mnt/download/complete -> Media share

Could my cache drives be an issue here? I was thinking about setting my Media share to prefer the download array and move at night but was not sure if that would resolve anything

Here are all of my shares

https://i.ibb.co/5XfBQXq9/image.png