so, since the introduction of coinhive on faucethub.io I had to log in via mobile to see chat/payout tables/faucet lists.
this is annoying since this logs you out when idle for 5 minutes.
now i noticed my battery draining realy fast when logged in. found a little icon when loggin in that had the pause/play function showing. it was on play. appearantly its been mining each time i visit. nothing showing in faucethub of cource becouse i never turned it on.

pressed pause here already.
Some security programs cause this problem and I've experienced myself same thing when Malwarebytes web protection is on-no chat and payouts data is just loading endlessly.In your case this problem is because of Kaspersky if you use that in your desktop PC.
There should not be hidden mining on FH,only option to turn on/off.In my opinion and many other users I see on FH chat this web mining is so low paying that I not see any benefit in using it.