diff --git a/croppa/main.py b/croppa/main.py
index 010b798..f5c14ac 100644
--- a/croppa/main.py
+++ b/croppa/main.py
@@ -495,9 +495,9 @@ class VideoEditor:
     ):
         """Seek video with different frame counts based on modifiers"""
         if ctrl_pressed:
-            frames = direction * 60  # Ctrl: 60 frames
+            frames = direction * 600  # Ctrl: 60 frames
         elif shift_pressed:
-            frames = direction * 10  # Shift: 10 frames
+            frames = direction * 30  # Shift: 10 frames
         else:
             frames = direction * 1  # Default: 1 frame