Manually set upstream and downstream bandwidth for optimize conference and gaming

The Eero built in speed test consistently reads about 35mbit/s down whilst Google speed test and Ookla, read around 320mbit/s, when connected to Verizon 5G home internet gateway.   If I enable optimize for conference and gaming (SQM), then it would appear to use recent speed tests to determine the connection speed and thus limits my connection speed.  If I could manually override the values, I could avoid this problem, for example by choosing 250mbit/s instead of it auto picking 35.    The Eero upload speed test seems consistent with other tests in my testing, but with an upload speed of 20mbit/s, SQM is useful, but I can not enable it without it crippling the download speed.