The UI is written in React, and apparently runs as a sort of an extension to chromium[0] according to a Vivaldi dev. I expect that would be a large source of pe

The UI is written in React, and apparently runs as a sort of an extension to chromium[0] according to a Vivaldi dev. I expect that would be a large source of performance decreases with a JS powered UI. It's certainly an impressive UI though. [0]: https://www.reddit.com/r/vivaldibrowser/comments/f9ui2b/is_the_ui_for_vivaldi_really_built_with_css_html/ https://www.reddit.com/r/vivaldibrowser/comments/f9ui2b/is_t...