Consider deprecating old utils API

**Feature request**
It would be great to have caching for store.

**Use case**
Many users need this functionality for production deployments.

**Implementation idea**
Add a new config option `enable_caching` with default `false`.

No file or test is named in the issue. Start by locating the store implementation and configuration entry points, then inspect how existing options are parsed and tested. The requested outcome is a documented `enable_caching` option defaulting to false, but caching behavior and the old utils API deprecation scope still need clarification.

Written by the indexing model from the issue text.