https://github.com/uBlockOrigin/uBOL-home/wiki/Frequently-asked-questions-(FAQ)#is-ubol-more-efficient-cpu--and-memory-wise-than-ubo
>Keep in mind that uBO's own JavaScript-based network filtering engine
>has been measured to be faster than a well-known Rust-based filtering
>engine (though the measured difference back then was low single-digit
>µs, not something that will ever be perceivable by a end user).