@donald.porter I think you should not jump the gun and accuse people without any valid proof.

If you found a JS file in the dev tools responsible for mining than ok, but putting out accusations simply based on a 30% gpu usage doesn't seem ok to me.

It could simply be that the rendering is not done properly (look at the clouds moving, it's not just an image or gif). Or it could also be an issue on your machine as I did not notice any significant GPU load changes in my case: