initialAccelerationFactor property
The initial value for acceleration factor. Acceleration factor is starting with this value and increases by specified increment each time the extreme point makes a new high. AF can reach a maximum of maxAccelerationFactor, no matter how long the uptrend extends.
API Docs: https://api.highcharts.com/highcharts/series.psar.params.initialAccelerationFactor
Implementation
double? initialAccelerationFactor;