Except that all of those produce HTML. They are all HTML websites.
PHP stands for "PHP Hypertext Preprocessor" because it is a Preprocessor of HTML (HyperText Markup Language).
If we are talking about browser performance, none of those technologies that you mentioned execute on the browser at all and are therefore irrelevant to Firefox's performance compared to another browser.
From a browser's perspective, every website is HTML, CSS and JavaScript.
Except that all of those produce HTML. They are all HTML websites.
PHP stands for "PHP Hypertext Preprocessor" because it is a Preprocessor of HTML (HyperText Markup Language).
If we are talking about browser performance, none of those technologies that you mentioned execute on the browser at all and are therefore irrelevant to Firefox's performance compared to another browser.
From a browser's perspective, every website is HTML, CSS and JavaScript.
sounds like you haven't met webassembly yet :D
please don't take this as a recommendation to use that, but it does exist.