Step 1: Log in to your Joomla admin dashboard.
Step 2: Go to System > Global Configuration menu.
Step 3: Go to Server tab and find Gzip Page Compression section. Hit Yes button next to it to enable this option.
Step 4: Do not forget to click on the green Save button in the top left part of the page for the changes to be applied.
Click here to view this article as Oryon knowledge base video tutorial playlist.