I’m not sure any more recent benchmarks exist, but try and use both and notice the difference first hand. One is clearly faster at the things that matter (text rendering and input) and yes — has less features.
The reason for this is the same reason that edge/safari have better scroll+graphics perf in their native OSes over Firefox and Chrome. 1st party browsers use internal apis that MS and Apple use and don’t expose.
>One is clearly faster at the things that matter (text rendering and input)
Those things hardly matter at level of difference between the two apps... This is not like Atom and Vim speed difference, this is more like Vim vs Emacs...