Acer only grants the installed GeForce RTX 3080 laptop GPU a relatively low TGP. As a result, the frame rates are clearly below average. A firmware update provides some improvement.
https://www.notebookcheck.net/Acer-Nitro-5-AN517-41-in-review-RTX-3080-can-only-develop-to-a-limited-extent.555203.0.html