Hello Adriana, 

if this happens only on this one device of yours it's not a problem or a bug on the site. Very likely it's your internet connection being too slow or your browser acting up. I myself experience some of the things your mentioned like the information when hovering over a name not showing up when my connection is really bad. We're sorry that we can't really do anything about this from our end, though.

Kind regards, 

Zaniah