Whenever i import a video into vegas and work on it, its fine. But when i render it, there seems to be a weird brief choppiness to it. I don't know if vegas usually does that or it has something to do with the renderer. I can prove it with a video (the video is a meme but i decided to use it as a reference):

Video (before vegas rendering):

Video (after vegas rendering):

As you can see, there's a brief choppiness that i don't like. Does it have anything to do with a setting? Let me know in comments.