A search feature gets slow not because you lack a search engine, but because the access pattern outgrew the data model. To fix it before buying new infrastructure, you climb a ladder of cheaper, reversible changes: single round-trip paging, index hints, full-text and suffix indexing, and paralle...
Source: [HackerNoon](https://hackernoon.com/search-before-a-search-engine?source=rss)