I’m a big fan of Firefox, just like you @RaEDGBE. Even Brave CEO co-founded Mozilla
(…and Javascript! And Brave. Impressive biography! 
), and I’m sure that Brave devs 
Mozilla Inc too!
Internet for people, not profit — Mozilla Inc.
Mozilla is one of the rare companies that actually care for users (and not just monetizing our data like Google does w/ Chrome as Facebook does with all of their products). They also care for open source, web technology development that benefits us all, etc.
…but I must defend Brave here.
@dunxd mentioned http://theguardian.com/
I loaded it in: Chrome, Firefox (mobile), and Brave. I didn’t notice anything different.
It’s slow & &glitch-y in all three, pretty much.
Every browser can sometimes be a bit “unresponsive”. Android is multi-app, multi-task OS, and RAM/SoC also affect performance.
: Maybe we can discuss how to “optimize” Brave as users, ie via chrome://flags
I’m sure that the Brave team does the same, on their side.
Just see how BIG “The Guardian” is:
https://gtmetrix.com/reports/www.theguardian.com/tCMYwVJj
383 external requests, 15 seconds to load, full of Javascript code, etc.
It’s BIG.
Add multiple tabs to that, multiple apps open (they’re running in the background on Android even if you didn’t start them) = every browser would struggle.
That’s my point.