Your QNAP is overloaded: see its CPU load in the upper right corner: 5.13. I suppose your QNAP feels slow too?
On a non-overloaded systeme these values will be well below 1.00.
So: find out what is overloading your QNAP. It might be SABnzbd itself: your QNAP 219P II only has 512MB RAM and some ARM CPU, so low-spec hardware.
Find out the available pystone specs of your QNAP: in SABnzbd, under Status, set SABnzbd's logging to +Debug, restart SABnzbd, click on Show Logging, and find a line like this:
Code: Select all
CPU Pystone available performance is 83028
Post that line here.
Furthermore: I would
lower to number of connections to 6 or so.
BTW1: "1.2MB/s." = 12 Mbps.
BTW2: To avoid double posting, I've removed your Dutch post