According to Inferno's benchmarks section[1] that lists Mithril, Mithril is actually slower than React when it comes to DBMonster and is slower than all others listed. As an aside, domvm seems to be exceptional in its performance and size. Yes, others are faster, but the library is much smaller. The flexibility of it is also pretty awesome and holds a place in my heart after making my own mini framework years ago.

[1]https://github.com/trueadm/inferno#benchmarks