Trouble with Traffic Shaping

[Manual6938]

Hi there,

I'm trying to set up my traffic shaping to prioritize up/down traffic from my desktop and deprioritize everything else. My network speed is 1200Mbps/35Mbps. I have configured a 1200Mbps pipe down and 35Mbps pipe up, with a priority and nonpriority queue for each of them (priority weight = 10, nonpriority weight =1). I have also set up the rules for each of the clients to be sent to each queue correctly which I can see in the status.

However, when I run a speedtest with these queues and rules enabled, I can only pull about 600Mbps down (even as the only client downloading). If I increase the pipe to ~1800 down, then it pulls my full network speed but I'm assuming the shaping wouldn't work in this case. Is there anything obvious I'm missing?