[Hummingbird Pro] Time it Takes to Join & Minify CSS

Hello,

I minified some css assets and also joined the files, but when I go to the source of the webpages, I notice that each file is served on its own.

Is this process supposed to take more than an hour?

The specific page I’m looking to improve is https://developers.google.com/speed/pagespeed/insights/?url=https%3A%2F%2Fwww.motorsonwheels.com%2Fsell-my-car-in-houston-tx
https://www.motorsonwheels.com/sell-my-car-in-houston-tx

It’s currently in the 28 and looking to get it up to 60+