Disable as calling .mean on ever growing list is a performance killer.

oi-sensor/oi-sensor.py

@@ -188,9 +188,9 @@ async def main():
             now = time.time() * 1000
             diff = (now-before)
             processing_time_list.append(diff)
-            if len(processing_time_list) > 100:
-                # print some stats
-                print("Processing time:  mean= %.2f ms, stdev=%.2f, countours = %d" %(statistics.mean(processing_time_list), statistics.stdev(processing_time_list), len(contours)))
+            #if len(processing_time_list) > 100:
+            #    # print some stats
+            #    print("Processing time:  mean= %.2f ms, stdev=%.2f, countours = %d" %(statistics.mean(processing_time_list), statistics.stdev(processing_time_list), len(contours)))
             contour_detected = False
             for cnt in contours:
                 area = cv2.contourArea(cnt)