Tactically superior does not only mean firepower. It means whatever it takes to win. Neither ship had the fire power to fight these space dolphins head on. It's just a question of if no matter how fast Equinox ran they followed, or if Ransom was going in circles fishing in a fishing ground until he had enough fish to get all the way home.
(DOLPHINS ARE NOT FISH!)
There was an episode of TOS where a Starbase Commander takes over Enterprise and fails to out gun the bad guys, and then begins to issue his Surrender, which is when Kirk takes back command and tells the pilot to go to warp 8.
Running away is another word for winning.