After 3 weeks of moving through uncharted space, Champion Onana's Frigate finally caught up and reunited with General Aztog's fleet.
During the battle of Planet Titania, the Frigate was by far the fastest of the Battleships. When Champion Onana made the decision to risk his life for them, while General Aztog hesitated, the Captain of the Roman Rider reacted faster.
He knew Onana best and understood when he was serious.
This was why the Roman Rider accelerated and gained a head start. Another fact was, a Frigate was one of the fastest of all Battleship classes.
It compromised a lot of other advantages to focus on speed.
None of the other Battleships on that battlefield could compete with it on that aspect. This was why apart from being the first to escape Planet Titania's gravity, the Roman Rider also suffered the least damage.