From my testing specifically from fast.com, every now and then when I run the test run and it glitches a bit, I will see the stated speed slow down and then spikes up, my theory is its using a rolling average, while the spike didnt register some data downloaded it later registers is and gives you a higher than normal average.
From my testing specifically from fast.com, every now and then when I run the test run and it glitches a bit, I will see the stated speed slow down and then spikes up, my theory is its using a rolling average, while the spike didnt register some data downloaded it later registers is and gives you a higher than normal average.