Seems like an awful waste to have many millions of cpus with avx for instance, wasted.
It is meant to be compiled to native instructions, I don't think there is significant room for hardware acceleration.
I am talking from a position of ignorance, but intuitively I am sure the runtime does or will do lots of things, between the sandboxing, the linking, potential garbage collection, etc.
It isn't run through a run time, it is meant to be just in time compiled to native instructions. There isn't any garbage collection.