Similar mate. I can see there you are asking for 3 or 4 gearchanges in quick succession, and mine will behave exactly the same as yours in that scenario.
For me it can be a single gearchange, say going 1st to 2nd or 2nd to 3rd at full chat. If the next gear is preselected (as it is supposed to be) it seems to take far too long to react to a paddle click, I would expect it to be near instant. The speed this thing revs out it's bumping the limiter before it changes.
I'm having to adapt to shift up 'early' so I avoid it, which feels wrong.