The parameter in avatar field options change the size of the stored image. To change size displayed then you need to add in your template configuration a custom style CSS code like this:
.jsn-p-avatar img, .jsn-l-avatar img {
width:130px;
}
.jsn-p-top-a .jsn-p-title, .jsn-p-top-a .jsn-p-before-fields {
margin-left: 150px;
}