They don't currently offer tab positioning, you can vote on that feature here: https://github.com/brave/brave-browser/issues/181
I'm kinda surprised you don't see an improvement in speed right off like I did, but I guess it depends on what sites you visit. It's good to at least try something...
Since downloading it on December 31 of last year, I've become a big proponent of Brave. It immediately became my default browser (with duckduckgo being my default search engine). It's fast and has great privacy features. I say try it out and see what you think.
It's been a month now using Brave as my default browser, and it hasn't missed a beat. I haven't had to open up another browser for any sites (knock on wood). It's still fast. I did have one issue with it on my Mac Mini, but a restart fixed the problem for me.
I just downloaded and am trying out Brave browser on my Mac. So far I am really liking the speed improvement. Have only gone to a few sites, but let's see if this will be my default browser in 2020.
Well, FF automatically updated to 70 just now, and the top menus Forums Tools Reviews ,etc. all drop down when I place the cursor on it, so not sure why it isn't working for you. The very top Forum List and New posts need me to click on them.