diagram performance is lacking if you try to zoom in or out. for example check temperature measurements of this station here: [](https://staging.opensensemap.org/explore/i0p77fprim6gk3xcjksddpq0/fa7b1e83fdd2021f7acfd77b#6/51.973/7.501) It might help to limit the zoom levels. Furthermore, you could define predefined viewing intervals and suppress free zoom.