Seemingly high network requirements for calls on iOS and Android

Have recently been playing around with throttling network speeds during calls to see how the application handles it. Have found that when setting speeds lower than 780/600 kbps users on iOS and Android are likely to experience frequent stuttering and eventually disconnection.

This happens even on an openvidu pro instance hosting a call with only 2 participants, no filters, not recording. Is this expected behaviour?

OV Pro Version: 2.24.0