All of these are excellent subjects for discussion with your Fleet’s Technical Manager who will describe your operator’s policy. Some options available are:
- A bespoke procedure for operations at high weight
- Additional speed limitations or delaying acceleration on the published missed approach
- Flying the engine out on takeoff procedure for the runway you are flying an approach to
Additionally, there may be a type/company specific procedure for a go around below decision altitude.
Every performance approved destination should have been analysed and this procedure carried out by a type-qualified performance engineer.
The answer will (should!) be in your airline’s performance manual.