When I played through the game a month or two ago, for the first time in MANY years, I remember hanging out in the center for the first half of the fight, it's easy to dodge him during the first half, once you know the pattern.
The second half of the fight, is what irritates me. When I played through it recently, for the first time in many years, I eventually figured out, as some have mentioned here, hanging out in a lower corner for that half. This year, when I played it through, I finished the game hanging out in the lower right corner during the last half of the fight.
Also, it helps to memorize the pattern a bit.