Guys, ETH token couldn't be mined. This guys just want your computer power to mine some monero for them. What you will get are worthless tokens. Funny.
No, HOWL use only very less computing time. It is now Coinhive Mining in the Background!
I can see now that the miner pauses when a tab is switched. This was a problem with a previous version and is a minor and easy fix which I will add soon. Other than that the miner should run at the same speed even with other stuff open, it's a simple Unity webgl implementation that shouldnt take up many resources.
Is this issue fixed? Please put a version number (and a changelog) on the miner site, that user can see when a new miner with bugfix is live...