All you have to do is concentrate on flying the correct procedure knowing that someone has done the paperwork beforehand to ensure you will meet climb requirements
In the ideal world.
Our procedures changed a few years ago precicely because this wasn't the case. There is no level segment accelleration in a missed approach procedure, so single engine accelleration in level flight compromises this.
We now calculate the lower of 25nm MSA, Missed Approach Level Off Altitude or Minimum Holding Altitude (if the missed approach terminates at a hold) and use this for our level accelleration.
PP