Bullets overlap

It’s not the plugin, but your theme that adds the bullet points.

Add this to the vela.min.css ( or any other CSS file loaded in your theme ) in your theme folder.

#wpsl-wrap #wpsl-result-list ul li::before {
   content: none !import;
}

The line in the css file says this on your site.

#wpsl-wrap #wpsl-result-list ul li::before {
}

It should be this.

#wpsl-wrap #wpsl-result-list ul li::before {
   content: none !import;
}