code: function calculateFastModeAllowableChange(elapsedTime) {
  	const elapsedTimeInSeconds = elapsedTime / 1000;
  	const allowableChange = fastModeMultiplier * Math.exp(fastModeExponentiationCoefficient * elapsedTimeInSeconds) + fastModeConstant;
  	return allowableChange;
  }
docs: @typedef {import('../speedline').Output['frames'][number]} Frame 
  This computes the allowed percentage of change between two frames in fast mode where we won't examine the frames in between them.
  It follows an exponential function such that:
  - We allow up to FAST_MODE_ALLOWABLE_CHANGE_MAX percent difference when the frames are ~0s apart.
  - We allow up to FAST_MODE_ALLOWABLE_CHANGE_MEDIAN percent difference when the frames are ~1s apart.
  - We allow up to FAST_MODE_ALLOWABLE_CHANGE_MIN percent difference when the frames are very far apart.
  
  f(t) = FAST_MODE_MULTIPLIER * e^(FAST_MODE_EXPONENTIATION_COEFFICIENT * t) + FAST_MODE_CONSTANT
  @param {number} elapsedTime