High CPU spikes with PJSIP and Asterisk 13.15

Thank you VERY much. Now I know what to look for. My guess is that freepbx does this listing for its statistics and part will be my job of running pjsip list * for monitoring. Is there a less CPU-expensive way of getting the online endpoints? Is pjsip show * similar from the performance point of view?

Thank you once again.