Improve controllers performance

**Description**
Currently lib lacks proper pagination support.

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

**Priority**: Low/Medium

Start by inspecting the controller-related code under lib and trace how collections or lists are currently returned. Identify the existing behavior that lacks pagination and check any available tests or usage examples; done means configurable pagination works with sensible defaults without regressing current controller behavior.

Written by the indexing model from the issue text.