POE 2 has the worst performance issue and still it has not been fixed.

The last time I had a severely unplayable experience was during Delirium in PoE 1, and that was fixed almost immediately. But PoE 2 is still awful to play due to performance issues, and months later nothing has been properly addressed.

How does pumping out new content every few months help if the core performance problems remain unresolved?

This is not “early access.” It feels like a half-baked game being pushed out while new content and MTX continue to be added. Because early access game is not about introducing new content and mtx. It's about releasing the base game and fixing it, then you release the game fully, then you introduce the new content and mtx.