Hi!
1. I believe it is because you have taxonomy terms as resulst enabled under the General Options -> sources 2 panel. Make sure there is nothing choosen: https://i.imgur.com/nwzppNf.png
2. Can you please be more specific about this? I am not sure I understand. Thank you!
3. The results box inherits the parent element width. With a custom CSS you can limit it’s max width:
[html].asp_r {
max-width: 480px;
}[/html]
I hope this helps!