There is no more efficient way to attend a lecture. Record lecture audio and text notes while watching the slides. When you get home you will have slides, audio, and text notes in sync. You can even increase the playback speed when you want to get through the lecture faster. Like no other app out there, I make the magic happen. Take that OneNote!!
It syncs lecture audio with the slide and text notes. You can even change the playback speed while watching the slide. Organize slide decks into folders for easy retrieval.