What happens on a Thinger instance left under an inactive tab?

I have here an New-Edge browser with a Thinger instance that i have left as a passive tab, browsing on other tabs for a couple of hours (my Edge browser is set up to not process inactive tabs in the background).

When I returned to my Thinger tab after ~120 minutes, it appeared to catch up all the time “playing the film” for all widgets at ~20x accelerated pace.
It blocked my browser for a couple of minutes letting all the values dangle as if the browser had got an epilepsy crisis until I decided to reload the page.

Is that wanted?
It puts IMHO a load on your servers, the network and my browser for no recognizable advantage.