Network changes are slow and take ~30s to be picked up

### Steps to reproduce

1. Start a call on wifi on iOS
2. Switch off wifi to fall back to 5G because you're leaving the building
3. Observe the transition takes ~30s to complete.

### Outcome

#### What did you expect?

~10s (or less) to notice that you've switched network and reconnect - which is what Jitsi manages.

#### What happened instead?

30s, which is very painful

### Operating system

_No response_

### Browser information

_No response_

### URL for webapp

call.element.io

### Will you send logs?

No

Start by reproducing the transition on call.element.io using the reported iOS Wi-Fi-to-5G steps and measure how long network changes take to trigger reconnection. Compare the observed delay with the expected 10 seconds or less; done means the call reconnects within that target after switching networks.

Written by the indexing model from the issue text.