The Pyramidion used to be an excellent, all-rounder fighter type ship. Since its turn rate was made horrible, it's become much more balanced. But yes, it's still an all-rounder. It has drawbacks now.
I'd personally like to see a hull nerf; it definitely needs its current armor. But otherwise, as others have explained, it's not overpowered. It's just common.
Nerfing the turn speed a little and buffing its engine power would further specialize it as a ramming ship, but beyond that, any adjustments seem unnecessary. Just let it sit, there are better ways to change the metagame than nerfs and buffs, in this case.
