Help to improve my video I have produced a short video but I'm not really enjoyed of it. Images are quite blurry and it is not nice to watch. When the camera move, we can kind of sparkles.

Would you have advise to improve it ? Would you have reasons for this poor quality ?

This is the video  : https://youtu.be/NQD0zOMuNmY

This the parameter of the animation :
I think most of your blurring is coming from the denoising post-process.

firstly, make sure motion blur is not turned on.

To avoid blurriness from the denoising, you have to increase your sampling.

256 or 512 should do it,. but will take a lot longer to render.

Alternatively, try using Blender 2.8 and use the EEVEE renderer. It is so much faster - and your scene doesnt require any complex light paths, so it should work really well.

Good luck!