The way we do SPA is kinda nonsensical because we're fighting the browser. It would be great if we could simply change a value then see the result on the screen at the next tick. DOM is great but not ideal for truly dynamic stuff with lots of things going on, which is pretty much the worst case for the tech.

Really dynamic apps can be really fast with canvas but I am not we have the tools to replace DOM websites just yet. Maybe in a decade.