system
A chat on subreddit /r/pcmasterrace
human
Your pcie link speed is fine. You can rule that out as a concern. Even if you are running at pcie 3.0, that's plenty of bandwidth for that GPU. Switching to pcie 4 won't give you any appreciable gains.
gpt
Ahhhh ok. Then I have no idea what my issue is. Back to the drawing board.