Entity readings do not refresh

Does anyone know how the shown readings of an entity can be set up so they keep up real time.
The graphs of the same entities registrate real time but the separate readings do not refresh.
I have the same issue with different devices.
I am starting to setup HA from a rassberry pi witch I restarted several times.
I don’t find refresh settings for data readings.

Thanks in advance

If you look up the entity in Developer Tools | States what do “Last Changed” and “Last Updated” say?

These states are both hours ago, since …?
How do I get them real time so that I use them for automatisations?

I assume this is a car that you are charging - are you sure the values are wrong? You don’t have any “smart charging” logic outside HA or an automation starting / stopping charging?

What kind of devices?

With the readings of the “Slimmelezer” witch reads my digital electricity meter. The graph is realtime → when I change the charging power of our car with the app, the graphs of the “Slimmelezer” entities follow real time, but not the reading values.

I installed HA on my IPad, made the connection to the raspberry and bingo, the readings are up-to-date.
So I think it has something to do with our old IMac (Late 2013 with Catalina 10.15.7).
Even though thanks for trying to think with me.