If the pursuit continues like this, there should be some gains. There's no need for the battlecruisers to fight desperately; just grind away at the smaller ships in the fleet, occasionally overtake and hunt them, and delay effectively.
Emphasize a strategy of harassing the retreating enemy.
Once the opponent's main battleships go mad and try to fight desperately, the battlecruisers can also choose to retreat, and the opponent won't catch up.
Even if they don't want to retreat, and decide to engage a while, the relatively faster Eagle Horse will soon arrive at the battlefield; with a little more persistence, the Firebath Nova will also be there.
As long as we continue pursuing a little longer, this situation is bound to happen.
However, in the end, Admiral Yelisia, commanding the Alliance Main Fleet, ordered the pursuit to stop.
They had already chased too far out, beyond the Alliance's control area, and pursued through several star systems.