Note: Since I changed from using the IKEA Tradfri hub to the Philips Hue bridge, my brightness sliders started showing this “bouncy” behavior where it takes a second before all sliders are in the right place.
However, as far as I can tell this isn’t a problem introduced with my component ('ve seen the same happen with the core light group) so instead there’s something that needs fixing way beyond this component. Fingers crossed that it works better with your setup than in mine 
