Why is canvas eating 8 cores at 100%???

Question

JavaScript

Good afternoon.
The question is general, why can canvas use all 8 cores to the maximum?
OS debian, chrome latest version.
In firefox everything works fine.
The code works simply - a frame is obtained, a small sprite is drawn through drawImage AND ALL!
At the same time, that the sprite is 1, that there are 1000 of them - there is no difference, fps - 60 ..
+ Is it possible to somehow determine whether this behavior is only for me or for others too? Those. how to cover with tests everything related to canvas??
+ I WILL NOTE THE FOLLOWING: when you switch to another deposit, the cores are released, when you return to the tab with the canvas, again 100%! As if besk. cycles start, but they don't!
WHERE to dig? Tell me plz...

Answer 1

Something does not work adequately and there are no even thoughts, why could this be?
Check if you have debian.