Less video quality on iOS

Good morning.

We are using jitsi-meet library with videobridge (simulcast enabled) as WebRTC implementation. Our native apps (Android and iOS) use this library in order to send and receive video streaming. Actually we are working with 1.75.2 version.

We are experiencing some issues related to iOS videoquality. As you can see in the following example:


Left one is iOS client and the one at the right runs on Android.

As you can see the image looks less sharp with less contrast, even more pixelated.
I wonder if anyone knows what the cause might be. If it is the codec, if it is simulcast, or if there is some way to debug this problem.

Thank you