It's definitely slower to actually load pages — I'm guessing that there are still a lot of network optimizations that more mature codebases have accrued that Servo hasn't yet — but holy cow are pages buttery smooth once they do load (and even while they're loading, which is unusual). Comparing Chrome and Servo in terms of UI jank felt pretty shocking, in Servo's favor. Kudos, it looks like Rust and WebRender have paid off.
Looking forward to seeing this evolve.