I seem to have an issue with the AP system taking a long time to climb to the selected altitude, putting it in V/S mode helps but then is unable to climb again if required after reaching the selected altitude. Not using V/S takes an age to reach cruising altitude and ATC are constantly reminding me to expedite my climb.
I’ve also experienced some strange oscillation, which is a first.
Nothing has been changed and I know the AP system in the Airbus isn’t the best, but I found on my last flight it’s practically unusable, unless I’m doing something wrong? But that would be surprising, since I have many hours since launch with the A320.
Thanks for any feedback or help.