Shared video is not sharp (pixelated)

Hi,

We developed an Android video share/view application using jitsi SDK 5.1.0
We are testing the application on 2 devices which are connected to the same network via 1G ports.
As a result, we got a video which is not sharp (pixelated).

Info:
Sharing device: resolution - 1920 x 1080 (Android 10)
Viewing device: resolution - 1280 x 720 (android 9,12)

Question:
Do you know how to fix this issue ?

Thanks