Chenks, which container did you go with?
And did you make any modifications, as Shadow did, or did you just do a straight up install?
i used the linuxserver one, and just a plain install.
things i have noticed.
setting it to only fold when the device is idle appears to result in it never starting, it seems it doesn't quite know when the NAS is idle or not (or maybe mine is never 100% idle).
setting it to either medium or full don't seem to make any difference - they both use 99% of the CPU.