I had to choose an older version of Proton
Which in turn caused the performance problems. Fast shader compilation extensions are available only on Proton 8 and newer.
Not sure why you’re getting down voted, you’re totally right. I wish I could have gotten it running on current proton as the recent performance updates are massive. Alas, EA Play ruined it. I found a GitHub issue for it and gave as much data as I could to help debug it.
Side note, when I ran the game on windows, EA Play was not only installed, but automatically configured to launch on startup. I just can’t imagine an app ever doing that to me on Linux.