This is native code, so you'd expect much better performance, but mostly this is just a really great foundation to build on.
Current features are thin, but you should expect a lot of improvements going forward, compare it to something like Ship of Harkinian (same team) for an idea of what might be to come. Features like high framerates and texture packs, built in randomizer and tracking support, modding support, a ton of features and tweaks for speedrunners, etc, and a metric ton of QoL features.