I don't know much about this but couldn't you use Emscripten and still get good performance? Emscripten also has a wasm backend in progress it seems so if you

I don't know much about this but couldn't you use Emscripten and still get good performance? Emscripten also has a wasm backend in progress it seems so if you begin using Emscripten today you might gain from that in the future?