While the next gen XBox Scarlett will clearly provide improved visual fidelity thanks to the more powerful Ryzen 3000 CPUs and Navi GPUs from AMD, Microsoft is also aiming to provide a smoother gaming experience via high framerates (at least 60 fps) and fast load times with the addition of custom NVMe SSDs.
https://www.notebookcheck.net/Next-gen-XBox-to-focus-on-high-framerates-and-fast-load-times.430268.0.html