I knew abolut the slow climb rate reputation, I was more asking about the high VR speed

I only used flaps 1 for takeoff, maybe I should've gone to another notch, just to decrease the VR speed?
I think the slow climb rate rumour is a bit exaggerating. when I hit thrust reduction altitude the aircraft performed okay, not a rocket of course, but just make sure you don't chase the managed speed settings and the A343 will climb in a decent manner.
And I didn't use all the thrust available,