If you want to view "real world" performance try this awesome website[0] on some of your regular sites. It includes comparisons with chrome, chrome+ublock, and brave. Also previous hn discussion[1].

I think the outlier cases are interesting. The Gamespot test[2] loads 2x slower and with 2x page size using default uBlock. Strange glass-card websites these days.

[0] https://webtest.app/

[1] https://news.ycombinator.com/item?id=21052969

[2] https://webtest.app/?url=https://www.gamespot.com/