Ask HN: I'm building an easy-to-use video editor, tell me your pain points

Pretty much, what's in the title. My focus is to be extremely easy to use, and I want to cut video editing time at least 5 fold.

My target audience is beginning youtubers, youtubers wanting to grow their channel.

With that in mind, what are your biggest editing pain points? Those that drain you out, and take most time? Thanks for sharing!