it might not be due to the Draw Method.
What video decoders are you using ? LAV, ffdshows ? Are those up-to-date ? Are those configured to use hardware acceleration (DXVA, quicksync, CUVID, etc). Does this means nothing to you ?
Also you might be subject to the latest updates induced lag. Try to disable shaders in PPDConfig.exe.
And if it's still not working check my last post on this thread
forum_thread/515