Right Way to Read vectors from Index

[Uthra]

Hi,
        Our project uses Lucene 9_7_0 and we have a requirement of frequent 
vector read operation from the Index for a set of documents. We tried two 
approaches 
1. Index vector as Stored field and retrieve whenever needed using StoredFields 
APIs.
2. Using LeafReader’s API to read vector. Here the Random accessing of 
documents is very slow.
Which one is the right approach and can you suggest me a better approach.Also 
why isn’t there a straightforward API like the StoredFields API to read vector.

Regards,
Uthra