Back on 21.02, cleared all settings.
echo performance > /sys/devices/system/cpu/cpufreq/policy0/scaling_governor
echo performance > /sys/devices/system/cpu/cpufreq/policy1/scaling_governor
If I was starting from scratch I might try a longer term bufferbloat test to give the governor time to shift into faster CPU mode. But I'm already sick of configuring for marginal power usage gains.
Installed and enabled irqbalance. Setting the assignments was beyond my skills with Google. Set packet steering in the luci web UI (network-interfaces-global).
Looks like I'm maxing out one of two cores in htop when I run a speedtest. Other core around 40-60%.
Settled on fq_codel/simple.qos. Apparently codel isn't designed for near 0 latency so I'm happy with 200+ down and <30ms latency. I'd do CAKE if it only took off 20 Mb, but beyond that I prefer speed. CAKE still can't crack 160.
Wifi is on now, though not heavily used. Performance holds up. Wifi bufferbloat tests indicate some <100ms download latency but that's fine. (58 on waveform). Still need to enable the other wifi radio.