Hello Adam, Conan Exile’s lack of optimization on consoles is a known problem.
Our comrades who play on Xbox Series X We get a Maj Next Generation, those playing on PS5 not had this chance.
Why?
Nevertheless certain problems are due to server performance and not to the console.
Alas I do not think that Funcom will proceed to a refund. As you were asking for, what game mode you played? Online, in solo-coop on private server?