Improve core performance

**Feature request**
It would be great to have backup for utils.

**Use case**
Many users need this functionality for production deployments.

**Implementation idea**
Add a new config option `enable_backup` with default `false`.

The issue does not name any files, tests, or entry points. Start by locating the utils implementation and configuration handling, then clarify what backup should cover, where backups are stored, and how enable_backup affects production deployments. Done requires an agreed backup behavior, a default of false, and tests for the configuration and backup workflow.

Written by the indexing model from the issue text.