If you google "how to make my website faster", one of the top recommendations is "enable gzip compression".
And, it's something that you SHOULD activate, especially if you use a large CMS like WordPress.
However, how do you do that?
NOTE: If you don't feel comfortable editing sensitive files, then file a support ticket and let a support team member do it. However, even if you are comfortable editing files that might break your site should they be messed up, exercise a lot of caution during the process.
It's quite simple.

Open the control panel and open the file manager (or sign in to your FTP client, whichever one you prefer), and go to the htdocs folder of the domain/subdomain you want to enable GZIP on.
Then, open the .htaccess file (if you don't have one, make one). It might be hard to find, especially when you have a CMS installed.

-On a new line, paste in the following:
<ifModule mod_gzip.c> mod_gzip_on Yes mod_gzip_dechunk Yes mod_gzip_item_include file .(html?|txt|css|js|php|pl)$ mod_gzip_item_include handler ^cgi-script$ mod_gzip_item_include mime ^text/.* mod_gzip_item_include mime ^application/x-javascript.* mod_gzip_item_exclude mime ^image/.* mod_gzip_item_exclude rspheader ^Content-Encoding:.*gzip.* </ifModule>
And then save. You may need to clear your website's cache to see the changes.