paddy_mcholey
You can add new profile while playing video with deintarlacing. You should see something like 720x480@60 (or 720x576@50). Click "Save", then open profile settings window and choose "smoothness improvement: Do not smoothing video".
After that go to menu, switch it to Expert interface and check item "Profile select settings: Profile filter by framerate".
That's all. Now SVP will automatically use this profile with no smoothing when playing deinterlaced DVD.