Help me figure out why I have gaming latency

DSLReports speed test is badly broken.

Ran a cursory test a few days ago and no improvement.

It reported my upload at 6 Mbps, when all other tests (Waveform, Ookla Desktop, Fast) are consistently in the high 40's.

It was a good resource in its day...sadly, no longer.

The site itself has been on autopilot for a long time.