The only thing putting me off currently is https://htpy.dev/faq/#how-does-htpy-performance-compare-to-d...
It would be awesome if Python community can get something with these ergonomics that also has performance of Jinja
So to us, htpy performance has never been an issue which is why we have not been optimizing it further. If anyone is interested in re-implementing parts of htpy in cython/rust/something or improve the performance in other ways, that should be quite doable. The core htpy element/attribute implementation is a few hundred lines of code. It is heavily tested with 1000+ lines of tests. It could be a quite fun project, contributions are welcome!
I believe one could prerender the static parts of the page and get most of the speed of jinja, but the improvement still won’t be noticeable unless the project is very performance sensitive.