total delay in heart rate monitor

What is the total delay incurred by the Sparkfun Single Lead Heart Rate Monitor AD8232? Basically I’d like to know, if someone is wearing ECG electrodes connected to AD8232, and I stim that person with repeated stim pulses at 5Hz - how long does it take the heart rate chip to process that signal and output it to the arduino?

It’s an analog sensor so there is no delay.