[Baron Munchausen]

Your mistake is holding too closely to the 'thematic' military tactics of the race. When fighting ships with the Talisman you need to open up the range by using seekers. The Jraenar could give them a fight. Or deny them direct combat altogether by using mines and other sneak tactics. Even fighters would be better than sending ships into range. At least you can split fighters into many small Groups to soak up the fire.