Brightness lag with ZHA and Ledvance RGB

Hello, I’m pretty new to this and been trying to get my first (and only) lightbulb to work (a LEDVANCE RGB bulb). I successfully paired it to HA with ZHA.
The problem: whenever I change the brightness in lovelace, the brightness slider snaps back to where it was and, after 1-2 seconds, snaps to where it should be (the updated value). The brightness of the bulb, however, changes almost immediately. So I have to wait for multiple seconds for the UI to reflect the actual state, which is kind of annoying.

Here a screencap for clarification:

Someone mentioned the ZHA global transition time to me, I have that setting at zero, so I don’t believe it should affect this?

I’m grateful for any input!

Sorry to revive this topic but have you ever found a solution to this?