UE5 - How to improve UE5 FPS? It is too low... clamped or slow motion, even with a new GeForce RTX 3080

I’m confident the team will fix all the FPS bugs, but for now I wonder what we can to tweak a solution, before the team fixes UE5 FPS issues, because there are, and I have an RTX3080, but I think we can start using it and then upgrade to a less buggy version in the future.