Usually canvas hardware acceleration is not taken advantage of unless you do CSS tricks like setting an element with another depth order.

https://www.programmersought.com/article/58016098343/

In any case, given how browsers black list drivers and GPU models, even WebGL isn't guaranteed to be accelerated.

With these constrains the Web will never be as fast as native for graphics programming.

They took us Flash away, but forgot to ensure the same capabilities were kept.