Wix is now showing its age and lack of development investment in things like page load speed. Whilst it performs ok (but behind other more modern stacks like webflow and good old wordpress event) on desktop, its score of 33 out of 100 for Google's page speed ranking puts it in the 'don't bother' category if you're thinking mobile first.
It does have some value to it, there are lots of plugins (they mostly cost though) and lots of out of the box features that are useful.
On balance though, the page speed for mobile is a dealbreaker, here are some more specific deal breakers for us in our use case.
- Doesn't play well with custom web apps, at all in fact, as in didn't work for us, we're using wordpress or vue now
- Wix doesn't allow you to write custom javascript (you can use an iframe) they have their own Velo ecosystem which is closed.
- The editor is substandard by a long way, editing static pages is painfully slow with significant input lag and the browser tab hosting the editor frequently exhibiting memory use of 2GB for pages that don't have video or much animation, or really much of anything.
- Their forum app is old and outdated
- Their designs, available fonts are un-inspiring
