Don't seek EVERY GOD DAMN FUCKING FRAME

croppa/main.py

@@ -65,18 +65,15 @@ class Cv2BufferedCap:
         # Clamp frame number to valid range
         frame_number = max(0, min(frame_number, self.total_frames - 1))
         
-        # Check cache first
-        cached_frame = self._get_from_cache(frame_number)
-        if cached_frame is not None:
-            self.current_frame = frame_number
-            return cached_frame
-        
-        # Not in cache, seek to frame and read
-        self.cap.set(cv2.CAP_PROP_POS_FRAMES, frame_number)
-        ret, frame = self.cap.read()
+        # Optimize for sequential reading (next frame)
+        if frame_number == self.current_frame + 1:
+            ret, frame = self.cap.read()
+        else:
+            # Seek for non-sequential access
+            self.cap.set(cv2.CAP_PROP_POS_FRAMES, frame_number)
+            ret, frame = self.cap.read()
         
         if ret:
-            self._add_to_cache(frame_number, frame)
             self.current_frame = frame_number
             return frame
         else:
@@ -461,7 +458,7 @@ class ProjectView:
 
 class VideoEditor:
     # Configuration constants
-    BASE_FRAME_DELAY_MS = 16  # ~60 FPS
+    BASE_FRAME_DELAY_MS = 1  # ~60 FPS
     SPEED_INCREMENT = 0.2
     MIN_PLAYBACK_SPEED = 0.1
     MAX_PLAYBACK_SPEED = 10.0