Add the following css snippet:
.popover.hover-popover {
margin: 20px 0 0 100px;
}
Margins can be adjusted according to personal preferences. Anyway, this results in a preview which doesn’t get in the way when going through search results (doesn’t work for backlinks though, as there isn’t any space left to the right - in this case the css classes should be adjusted in order to result in different behavior for varying panes…)