It could be the three.js shader on the page that they use which renders in the background. I think you may be able to disable shaders to test but not sure. Been awhile.
Want to point out, it does run pretty quick on my iPhone surprisingly (and faster than my other dev laptop :-P). Almost forget how much power phones have...
Want to point out, it does run pretty quick on my iPhone surprisingly (and faster than my other dev laptop :-P). Almost forget how much power phones have...