Introduce PerfBoost:

PerfBoost Scheduled Plugin Manager – Boost WordPress Performance Plugin for WordPress is a breaking edge automatic plugin manager. It will boost the performance of your website, by deactivating other idle plugins, and activating them just when they are needed.

Main Feature PerfBoost:

We developed the PerfBoost plugin with simplicity in mind. We use all of these optimizations on our own sites and are excited to provide an easy way for you to now have them too! Performance optimizations should not be complicated and so every plugin on your site can be enabled/disabled with a single click.

The main way this plugin helps speed up your site is by disabling other plugins that might not be used on your site. For example, you might have some plugins for publishing new posts you publish on your site on social networks. These are activated only when you publish new posts. These can be easily deleted the rest of the time, and automatically enabled only when you publish a new post. By limiting activated plugins you can ensure a fast and snappy website.

Another perk to this plugin is the fact that we are constantly adding new features to the PerfBoost plugin to help you speed up your WordPress site even more! Bringing a performance boost to your website is our job.
This plugin will reduces the page size, because unnecessary CSS/js files are not loading. Also, it will reduces the total number of HTTP requests, making your website up to 90% faster.