Optimize validation for large datasets

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

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

**Priority**: Low/Medium

No files or tests are identified in the issue. Start by locating the route handling and existing validation or configuration paths; done means routes support configurable compression with sensible defaults and the behavior is covered by the repository's existing checks.

Written by the indexing model from the issue text.