Optimize data for large datasets

**Description**
Currently utils lacks proper search support.

**Proposed solution**
Add configurable search with sensible defaults.

**Priority**: Low/Medium

Start by locating the utils code responsible for handling or searching data, then review the existing behavior with a representative large dataset. Clarify the required search options and sensible defaults before implementation; done means configurable search support is available and its behavior is covered by relevant tests or reproducible checks.

Written by the indexing model from the issue text.