Unable to have decent performances despite system requirements exceeded.

I'm sorry to hear about the performance issues you're facing, especially with such a capable system. It sounds like you've tried many possible solutions, and I can understand how frustrating this must be. I’ve also noticed similar complaints from other players, so it might be a more widespread issue. If EA support can’t provide a fix soon, I’d suggest considering a refund as you’ve mentioned. Hopefully, they’ll address these problems quickly!"