I am making a small documentary on blender 2.9 (I think) for history class. While doing this I did not encounter any problems until I added a video from my phone to the script.

Now the video is upside down, and it is extremely compressed and choppy. It doesn't even match the audio because it is so compressed, and I don't know how to fix it.

[![enter image description here](https://i.stack.imgur.com/QV8KX.png)](https://i.stack.imgur.com/QV8KX.png)

(I blurred my face for privacy reasons)