As you can see in the top banner, it's using the "interpreted" mode, which is the slowest runtime mode for running .NET on mono-wasm. But it's also the "compatible" mode.
It would be possible to produce an AOT build which would be 50x faster, but it's a little more work and it wasn't the goal of this demo.
It would be possible to produce an AOT build which would be 50x faster, but it's a little more work and it wasn't the goal of this demo.