Sorry to hear the site was slow for you. We get pretty good scores on Lighthouse and from real-world data according to https://developers.google.com/speed/pagespeed/insights/?url=...

What OS, browser, and connection type/speed did you use?

Ubuntu, Firefox, sucky country adsl with unkown speed.

I don't mind for the upload to be slow, I just let it run, but getting to the page should not be.

I mean, this galaxy.jpg file is a third of you webpack JS bundle size!

It has no added value for me. I get the cool factor, I know it's pretty, but still.

You could add a "fast" or "lite" or similar subdomain that avoids anything like the complaints that have been shared here. Not perfect (the default should be the best), but at least you could avoid this problems as a user.