RAG latency noticeable

RAG latency becomes noticeable when retrieval and generation are both added to the path without much optimization. What seemed acceptable in a prototype can feel slow the moment users expect near-instant interaction.

Often the problem is not one huge delay but the combination of several smaller ones. Search, ranking, prompt assembly, and model generation all contribute, and each extra step compounds the wait.

The best improvement usually comes from simplifying the retrieval path, shrinking context, caching repeated lookups, and deciding when RAG is actually worth the latency cost. If the answer can be served faster another way, users will usually prefer speed over perfect grounding.