Hi Kenneth,
You need to optimize your search.
Check about matches, when you can push "exact" (Try to not use "like" in the SQL query, display it to check).
If it's a module I suppose you just need to display a maximum of predefined items (3, 5, 8, 10...). Edit the search configuration and push a limit to this maximum.
Check field values which are displayed: if you have "dynamic" field such as select dynamic replace it by a field alias (with text type) only in the content view.
Thanks.