I've been advised that on larger boards, Sphinx search would be a better option. I've collected some information about it but unable to make out whether it will be useful. I learned that the sphinx search engine is very good at indexing the content and can create millions of posts in just a few seconds. That's actually very impressive compared to the default php search engines.
What's your take on Sphinx Search Engine. How is it different from other search engines for database driven websites?
Link: <a href="https://sphinxsearch.com/" target="_blank" rel="noopener noreferrer">Sphinx | Open Source Search Engine</a>