Unquiet idle 180er…

I have the problem that my idle is somehow not quite calm. Yesterday I switched LMM and candles in the hope that it might have something to do with it. Still, idle is still a bit restless. By restless I mean that the drezahl LEICHT fluctuating is so maybe around 100 turns . Sometimes a little up and a little down. Maybe someone from you also has such a problem? Or an idea what it could be?