diff --git a/videocr/api.py b/videocr/api.py
index d7dc4a0..4cdf6bf 100644
--- a/videocr/api.py
+++ b/videocr/api.py
@@ -4,7 +4,7 @@
 
 def get_subtitles(
         video_path: str, lang='eng', time_start='0:00', time_end='',
-        conf_threshold=65, sim_threshold=90, use_fullframe=False) -> str:
+        conf_threshold=65, sim_threshold=90, use_fullframe=False, skip_frames=0) -> str:
     utils.download_lang_data(lang)
 
     v = Video(video_path)
diff --git a/videocr/video.py b/videocr/video.py
index 27ebdc3..8e1c08c 100644
--- a/videocr/video.py
+++ b/videocr/video.py
@@ -29,12 +29,13 @@ def __init__(self, path: str):
             self.height = int(v.get(cv2.CAP_PROP_FRAME_HEIGHT))
 
     def run_ocr(self, lang: str, time_start: str, time_end: str,
-                conf_threshold: int, use_fullframe: bool) -> None:
+                conf_threshold: int, use_fullframe: bool, skip_frames: int) -> None:
         self.lang = lang
         self.use_fullframe = use_fullframe
 
         ocr_start = utils.get_frame_index(time_start, self.fps) if time_start else 0
         ocr_end = utils.get_frame_index(time_end, self.fps) if time_end else self.num_frames
+        skip_frames = max(1, int(self.fps / 2) if skip_frames is True else 0 if skip_frames is False else skip_frames)
 
         if ocr_end < ocr_start:
             raise ValueError('time_start is later than time_end')
@@ -43,8 +44,8 @@ def run_ocr(self, lang: str, time_start: str, time_end: str,
         # get frames from ocr_start to ocr_end
         with Capture(self.path) as v, multiprocessing.Pool() as pool:
             v.set(cv2.CAP_PROP_POS_FRAMES, ocr_start)
-            frames = (v.read()[1] for _ in range(num_ocr_frames))
 
+            frames = (v.read()[1] for _ in range(0, num_ocr_frames, skip_frames))
             # perform ocr to frames in parallel
             it_ocr = pool.imap(self._image_to_data, frames, chunksize=10)
             self.pred_frames = [