Optimize lib for large datasets

**Description**
Currently config lacks proper timeout support.

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

**Priority**: Low/Medium

Start by locating the configuration entry points and the code paths used for large datasets or long-running operations. Determine where timeout values are read and whether existing tests cover configuration defaults. Done means a configurable timeout is supported with sensible defaults and the relevant behavior is verified.

Written by the indexing model from the issue text.