Search is delayed when typing

I have a page with over 95,000 words on it, so when I try to search with your plugin it is understandable delayed because it cycles through the entire 95,000 words every-time you type a character.

My question is, is there a way to add a “search” button, so that it would not start searching through the document until I have typed out what I want to search for and then click “search”?

The page I need help with: [log in to see the link]