Pages with lots of mathematical expressions tend to take a long time to be rendered with MathJAX; KaTeX is a similar tool that’s much faster: https://khan.github.io/KaTeX/
So do I. If it was, I would be using AsciiMathML is ve9y ea/y to type.
But the great news is that with a simple css stylesheet, every browser can render your MathML!
Made typos while typing “very easy to type”. -_-
Here is an overview of mutiple alternatives, including MathJax, Mathml, plain text, preformatted text, tables, unicode… http://www.cs.tut.fi/%7Ejkorpela/math/
And a wikipedia page about converting math for the web: https://en.m.wikipedia.org/wiki/MathML#Web_conversion
I bypassed all math typesetting by writing them right away in ascii.