There was a not so famous Russian International Master a few decades ago (Whose name I sadly forget, but who was the topic of an excellent article buried somewhere in the chesscafe archives). He never won any international tournaments, but he managed to win the Moscow Blitz Championship repeatedly against fields including Tal, Petrosian and other of similar stature. His rule of thumb for blitz, moves pieces closest to the clock and play in an unorthodox fashion...
That's it...
And this guys beaten Tal at blitz....
Any hints as to tendencies, technique, or hardware needed to keep up pace. I find in a 2 minute bullet I'm like 1 minute behind.
Chess knowledge is important but I know there's more to it. When I went from a trackball mouse to a laser mouse I noticed significant improvements but still seem way behind?