For takeoff in high turbulence, the flight crew must wait for the target speed +20 kt (limited to VFE-5)
before retracting the slats/flaps (e.g. the flight crew must wait for F+20 kt before setting Flaps 1).
Not really relevant when going from 1+F to 0 at heavy weight - auto flap retract will occur at about S speed.
Microburst - are you following the FD pitch commands precisely or just allowing the FBW to compensate for flap retraction? It is not perfect in this situation - fly the aeroplane!