diff --git a/pynars/ConsolePlus.py b/pynars/ConsolePlus.py
index 204cab5..67bea90 100644
--- a/pynars/ConsolePlus.py
+++ b/pynars/ConsolePlus.py
@@ -223,9 +223,9 @@ def toggle_silent() -> None:
 @cmd_register('cycles')
 def cycles(*args: List[str]) -> None:
     '''Prints the "average cycles per second" metric'''
-    if(len(current_NARS_interface.reasoner.cycles_durations_window) == 0): current_NARS_interface.print_output(type=PrintType.INFO, content="No cycles have been run yet.")
+    if(current_NARS_interface.reasoner.cycles_count == 0): current_NARS_interface.print_output(type=PrintType.INFO, content="No cycles have been run yet.")
     else: current_NARS_interface.print_output(
-        type=PrintType.INFO, content=f'''The average cycles per second is {1 / current_NARS_interface.reasoner.avg_cycle_duration} based on the last {len(current_NARS_interface.reasoner.cycles_durations_window)} cycles. Last cycle took {current_NARS_interface.reasoner.last_cycle_duration:.32f} seconds.''')
+        type=PrintType.INFO, content=f'''The average cycles per second is {int(1 // current_NARS_interface.reasoner.avg_cycle_duration)} based on the last {current_NARS_interface.reasoner.cycles_count} cycles. Last cycle took {current_NARS_interface.reasoner.last_cycle_duration:.6f} seconds.''')
 
 @cmd_register(('volume'), (int, 100))
 def volume(vol:int) -> None:
diff --git a/pynars/NARS/Control/Reasoner.py b/pynars/NARS/Control/Reasoner.py
index ec9ae58..7d53575 100644
--- a/pynars/NARS/Control/Reasoner.py
+++ b/pynars/NARS/Control/Reasoner.py
@@ -50,9 +50,8 @@ def __init__(self, n_memory, capacity, config='./config.json', nal_rules={1, 2,
         self.u_top_level_attention = 0.5
 
         # metrics
+        self.cycles_count = 0
         self.last_cycle_duration = 0
-        self.cycles_durations_window = []
-        self.cycles_duration_window_sum = 0
         self.avg_cycle_duration = 0
 
     def reset(self):
@@ -288,15 +287,6 @@ def do_cycle_metrics(self, start_cycle_time_in_seconds: float):
         #  record some metrics
         total_cycle_duration_in_seconds = time() - start_cycle_time_in_seconds
         self.last_cycle_duration = total_cycle_duration_in_seconds # store the cycle duration
-        # put it in with the others to find the avg duration
-        self.cycles_durations_window.append(total_cycle_duration_in_seconds)
-        self.cycles_duration_window_sum += total_cycle_duration_in_seconds
-
-        # we only want to keep track of a certain number of cycles, so remove old cycles
-        if len(self.cycles_durations_window) > Config.Config.cycle_durations_window_length:
-
-            self.cycles_duration_window_sum -= self.cycles_durations_window[0]
-            self.cycles_durations_window.pop(0)
-
-        self.avg_cycle_duration = self.cycles_duration_window_sum / len(self.cycles_durations_window) # avg seconds per 1 cycle
-
+        # calculate average
+        self.cycles_count += 1
+        self.avg_cycle_duration += (self.last_cycle_duration - self.avg_cycle_duration) / self.cycles_count