Daniel Mahaffy

The “All-in-One Event Calendar” by Time.ly works great, but uses dynamic javascript. 
This plugin creates a static version of the javascript that can be cached by 
the browser.
I have tested this plugin with versions 2.1.9 and 2.2.0 of the event calendar plugin. 
It may work with future releases, but use it at your own risk.
This plugin only uses the static javascript on the frontend. If a user is 
logged in, the original dynamic script will be used. As far as I can tell 
caching the javascript does not interfere with the plugin’s functionality, but 
there may be features of the event calendar that do not work with this plugin.

Fix Event Calendar Caching

This plugin makes the All-in-One Event Calendar's javascript cacheable to improve page load speed.

nigro.simone

This small plugin (10 Kb) enables browser caching in your Apache web server and help browser to cache a local copy of static files and improve page load times.
Configurations are not required! You just have to install it and after the plugin does it all, none further action it’s required.

Speed Up – Browser Caching

Help browser to cache a local copy of static files and improve page load times.

Fix Event Calendar Caching vs Speed Up – Browser Caching