Optimize config for large datasets

**Description**
Currently routes lacks proper monitoring support.

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

**Priority**: Low/Medium

Start by locating the routes component and reading how it currently handles monitoring or related configuration. Clarify the monitoring signals, configuration surface, and sensible defaults before making changes; done means routes has configurable monitoring with documented default behavior and coverage for the relevant cases.

Written by the indexing model from the issue text.