What is the logic behind the appearance of the 3-human icon (client network) and 3-machine icon (data center network).
Let's said for example, both client network and data center network are green and healthy, then on what basis would the dashboard use to render the icon? Random?
Reasons for slowness are calculated for every slow page/operation load. The prevailing one is surfaced as primary. There may be not enough slow pages to render the whole application performing slowly, but some pages would still be slow and this icon suggests what may be worth looking at proactively. Perhaps these documentation topics should help: