from an airbus WISE document
This “Overweight Ldg proc” correction reflects the application of the OVERWEIGHT LANDING procedure, such as:
• Longer airborne phase (modelled with 7 seconds and a touchdown speed of 98% of the approach speed on A330/A340 aircraft; 9 seconds and a touchdown speed of 97% of the approach speed on A320 family aircraft),
• Braking application is delayed until Nose Landing Gear touchdown (ground spoiler deployment still set at or near main gear touchdown),
• An adapted derotation to account for the smooth touchdown recommended in the procedure.