refactor: add sleep to frame processing for smoother frame handling and update default show_stats value

app.py

@@ -76,6 +76,8 @@ def frame_processor(session_id: str):
                 session.latest_frame = frame
 
                 next_frame_time += frame_duration
+            else:
+                time.sleep(0.001)
 
 def stream_mjpeg(session_id: str):
     global sessions
@@ -101,7 +103,7 @@ def video_feed():
     global sessions
 
     session_id = request.args.get("id", "default")
-    show_stats = request.args.get("show_stats", "0") == "1"
+    show_stats = request.args.get("show_stats", "1") == "1"
 
     if session_id not in [s.id for s in sessions]:
         session = Session(session_id)