XR500 Speed Issue?

[zanm]

I have 200 Mbps Down through my ISP and recently noticed that my speeds have been extremely slow on Xbox.  My tests below.

XR500 is on latest firmware V2.3.2.114

Geo-Filter is not set

QoS is on and set to When High Priority Traffic Detected and Download 70% Upload 70%

Speedtest 1:

Direct connect PC cable to modem: 230 Mbps Down and 10 Mbps Up

Direct connect Xbox cable to modem: 232 Mbps Down and 11 Mbps Up

Direct connect modem to XR500, then direct connect XR500 to Xbox: 73 Mbps Down and 5.4 Mbps Up

Why am I getting such low speeds when going through the XR500 hardwired?  How can I increase my speeds on Xbox?

Thank you,

mz

[Netduma-Liam]

If you fully disable QoS from the three-line menu in Congestion Control, what do your speeds increase to? Is it closer to what you expect to receive from the ISP?