Two videos demonstrating the difference in scrolling on my Androod M13 octocore Android 13 phone between Plebstr (smooth and responsive) and Amethyst (feels laggy and unresponsive):

https://photonsphere.org/nostr/Plebstr-trimmed.mp4

https://photonsphere.org/nostr/Amethyst-v65-trimmed.mp4

(BTW: I like Amethyst very much because it has lots of nice functionality is robust and is actively maintained.)