Unity Animation Skipping Frames

Hey, I've recently been trying to animate an opening scene in Unity 5 in which a camera flies over the city to give a view over it, sorta like a drone getting footage of a city from above. I've modeled the entire city and all and made the camera animation but whenever I play it, the animation is incredibly choppy and skips about 20 frames, going from frame 1 to 19 to 42, making the animation super choppy. Is it because I have too much in the scene for Unity to process? If so, can I do a render like in After Effects such that it takes however long to render it smoothly, then produce a smooth clip? Sorry if this is a bit of a noob question, I'm just more used to After Effects animations. Thanks (Here is what I want it to look like, just in animation instead (from 0:24-0:37) -

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Hey ! I think I have exactly the same problem (for another application) did you found a solution ? Did you use Camera.Render() to do the rendering ?

Thanks !