You can modify the default sampling interval rate for
  elapsed time and process time.

  To modify the default sampling interval rate for
  elapsed time, click on the box next to Elapsed Time
  sampling rate and choose on the the sampling rates
  displayed in the pull-down menu that appears.

  To modify the default sampling interval rate for
  process time, click on the box next to Process Time
  sampling rate and choose on the the sampling rates
  displayed in the pull-down menu that appears.