Screenshare quality is so bad

### Steps to reproduce

1. Where are you starting? What can you see?
Screenshare during the call is so bad regarding the quality
2. What do you click?
Share screen

### Outcome

#### What did you expect?
I expect to be able to choose the quality of the sharescreen in the settings, or to be the best by default.
#### What happened instead?
no option to select and it's so bad

### Operating system

Windows

### Browser information

Element Desktop

### URL for webapp

call.element.io

### Will you send logs?

No