I definitely had some uncanny valley vibes watching it, but I think it might be a combination of the camera's perspective (distorting distances away from center) and the footage being sped up/slowed down.
More like footage being stabilized in software like Reelsteady / Gyroflow . Typically fpv videos are a little more "jerky" and these software remove the lens distortion and then stabilize the footage.
here's a sample: https://www.youtube.com/watch?v=EA6ntosoZYs