Lack of choice of video quality in the app

Greetings to all, I want to make a suggestion which is an urgent need that we have many in my country. The following happens:

I live in a country where internet prices are very high and the application makes a very high bandwidth expenditure. I ask you to add to the application an option to select the default video quality to avoid the above. Thank you very much in advance.

If you mean the browser when you say “the application”

if you mean the Android app by the application, I’m afraid that it’s not currently possible, a long standing problem. From the github issue the Jitsi dev claims it can be solved if you use your own instance to change the config.js but the effectiveness has been contested.
Maybe you could try a mobile browser.