[Suggestion] Use KaTeX instead of MathJax
KaTeX renders faster than MathJax, but it has no support for commutative diagrams and some syntax. Math.Meta.SE has post(s) about the rationale for keeping MathJax (for backward compatibility with numerous existing posts). It seems to me that for the case of a personal site, re-writing a few lines of code won't be hard, but the gain of the loading speed might offer a marginal benefit in search engines. You know it the best for your site.
Edited by Vincent Tam