Improve the real or perceived speed of the site, or monitor performance metrics.
The views advanced cache module provides a cache plugin that allows more precise manipulation of cache tags and cache contexts.
It is intended for advanced technical users with an understanding of the Drupal 8 Cache API.
Misconfiguration can lead to incorrect or stale cache results including bypassing of standard content access restrictions.
The PHP Error Log module logs events by sending messages to the php error log, which could be the web server's error log or to a file.
Tome is a static site generator, and a static storage system for content.
Automatic cache tag invalidation for referenced nodes
External JS module allow to config exteranl js files on page load, which can make page load easiser in some situations:
configure: admin/config/ext-js