to use coinhive to a processing too small to not affect the computer .. laptop or phone is there a problem in this? I've tested on multiple systems and it works fine ..
It's not a problem from a technical standpoint, but from an ethical standpoint. My 7th gen i5 heats up to around 150F (laptop) when browsing your faucet. While that is not really really hot, you might want to at least let your users know you are using Coinhive. Plus, in my experience, you get more claims when you do not use Coinhive in the background and have it enabled automatically. Something to keep in mind.