I just got in my Route 10 after running some speed tests, its maxing out at 350Mb/s down and at 700Mb/s up. My UDM SE sees about 1Gb/s down and 1.2Gb/s up. I have disabled, rebooted, and reenabled hardware acceleration, disabled all filters and intrusion prevention and I am only seeing the same numbers with the Route 10, am I missing something here?
There must be something specific to your setup that is causing lower speeds. Can you give more information about how things are connected, and your ISP? Also, if you are open to inviting me, I can take a look directly.