Hi there!
I had the same problem and was trying to find a solution on the internet. Having found none, I tried to work it out myslef. It was much easier than I thought. ??
Open the file “nivo-slider.js”.
It’s in the folder “web/wp-content/themes/tempera/js/”
Find this line: “pauseOnHover:true”
and
change it to: “pauseOnHover:false”
That’s it. Works like a charm.