Improve the real or perceived speed of the site, or monitor performance metrics.
The Revision Snip module provides a utility to prune node revisions that are older than a certain number of days from the database.
This module stores each bundles of entity data in single row. Example, if a content type "page" having 10 different fields, it holds the whole node data in single node.
https://www.drupal.org/node/2693251.
You can use AWS CloudFront as a reverse proxy in front of your whole Drupal site.
Like https://www.drupal.org/project/bigmenu but with Taxonomies.