TBF when dealing with I/O using the right async constructs is way more important than the choice of programming language, I/O times will dominate and any mistake on the wrong wait will ruin performance.
Absolutely but "blazing fast" has become kind of a meme among rust projects. Getting a bit tired of seeing it everywhere personally, at least show me some benchmarks when you make claims like this.
No shade against this project (or rust in general) though, it looks very nice and I wanna try it out.