I have a VRR monitor, and Brave’s performance in youtube is extremely choppy. When I scroll using the mouse wheel everything is ok, but when I utilize the Scrollbar, the performance becomes noticeably choppy. I think the scrollbar is tied to ram usage, because on other parts of youtube the scrollbar is fine, but on the homepage, its performance noticeably tanks. Also opening a video in a new tab changes the scrollbar to the system default browser, which actually performs better. Maybe disabling the custom scrollbar would yield positive results.
This is not the same case for firefox which runs youtube smooth as butter.