Wix tech support said I should post this question here
I was examining the html source of the pages I have developed in Wix (using a standard template) and a few things do not seem right to me.
First, there are many dozens of @font-face elements (271 KB worth!) when I only have a few fonts on the page. How can I strip these out?
Second, the rendererModel object seems ridiculously verbose with vestigal content. There are sections on PriceQuotes, a Wix Package Picker, Promote VideoMaker Home, Workflows, Rabbit SEO, Promote SEO Patterns, Marketing Integration, Wix Cashier and well, I am less than halfway through the object. There are are also some legit section like Gallery Pro and Blog. Why all this extra fluff that is not even on the web site - I have a paid subscription without Wix ads.
Is there a way I can clean all of this up?
Thanks,
Brad
Why are you looking at the page source anyway, you are using the Wix Editor so that you can simply place things on a page and not have to worry about all of that as the Wix website does it all for you.
Don’t panic about anything on your page source code, the extra fonts that you talk about are probably only the fonts that are already included within the Wix Editor for starters, the default fonts before you add your own etc.
You don’t have access to the DOM through Wix anyway so you can’t go changing things and potentially breaking your website and then complaining to Wix that it doesn’t work anymore.
Having used many IDEs, frameworks, wysywig editors and CMSs over the last few decades, and being new to Wix, well, I was curious how Wix worked.
An extra 271K of font data in the final output and another few K of vestigial code seems like a significant liability to load times which directly effect my Google placement, not to mention UX.
I’m an old fogey who still remembers writing code on computers with KB of memory and writing websites that worked on dial-up, so I still have a habit of eliminating waste and fat.
Yes the good old days 
Obviously not showing our ages here, I remember being a kid and thinking that the Commodore 64 or Amiga were the bees knees and that coding something on them or the BBC computers at school were so great!
Like with dial up broadband, the C64 had the lovely musical tones of the tape loading, so if the dial up tone didn’t make your ears go, then the C64 tape loading would.
I am sure that we could discuss for hours and others would happily jump in and chat too, however I am only here on my own free time and need to do other things too!
But as you mention about working with so small memory etc, how things have changed with simple mobile phones now more powerful than a computer in the old days etc, etc.
It is the same with coding when younger, you could spend all day doing it and think you are an expert, then fast forward into the future and the kids bring home from school those basic Raspberry Pi and they can do more code in an hour than we managed to do in a day. 
One last point too, if your site is well designed and you utilise the many tools provided by Wix, then it shouldn’t really make a bad impact on your page ranking in any search provider like Google and neither should it make the user experience a bore either.
Anyways, hope that you enjoy getting used to Wix and if you have any code issues, then please post in this forum anytime.
If you have issues regarding the Wix Editor or any of it’s own settings, then you are better suited going through Wix Support themselves as it won’t be code related.
https://support.wix.com/en/about-wix/contacting-wix-support
https://support.wix.com/en/
https://support.wix.com/en/corvid-by-wix/basics
https://www.wix.com/corvid/reference
Bear in mind using Wix for Website building is like using Illustrator for SVG’s. If you take the time to look at the output in markup, it’ll be ugly by design because it’s only intended to be used with the GUI.
All that fluff is a byproduct of their architecture and how they’ve prioritized things, but it’s entirely up to them and non-editable. I will say, if you use the text editor popup to actually set your headers instead of granularly changing font properties, that will clean up HTML related to your text.