The Sajuuk-Khar can take down entire fleets on its own if used properly AND, and it's a big AND, if you have a good amount of the right perks unlocked, coupled with the right ship mods.
If you lack the proper upgrades, then, yeap, it's a glass cannon, much like its smaller brother, the Skaal. A very large and expensive glass cannon.
So if you want the Sajuuk-Khar to be Death Incarnate, then you'll have to nourish it with high amounts of upgrades, player perks and love.
If you can't give it all that, better not buy it and go for a Skaal instead.
This ship will never be made stronger by my hands. Because if I did, then a fully upgraded one, coupled with a high level player, would dominate any battle.
It has been a while since I've played Starsector. I'm a bit out of it. But that's my take on it. (Not to worry, I'll keep updating my mods, unless Alex makes that technically impossible for my inapt brain.
)