Most motors / solenoids are ok with a higher impulse voltage in the beginning. In fact, for solenoids this is a good thing as it ensures the solenoid will be reliably energized. Because the voltage comes from charge stored in a capacitor, and the energy is limited and shouldn’t cause any damage.
If you don’t need the boosted voltage, go to Edit Options and set ‘boost time’ to 0. This way the boost converter will be turned off and won’t produce the initial high voltage.