This doesn’t entirely surprise me, tools like SEMrush and Ahrefs have historically struggled with webpages that are reliant on client-side javascript to build the page. This is because they’re just scanning the page source and not actually rendering the page.
Yeah I don’t think anyone is disputing that Bubble really struggles with Lighthouse and GTmetrix (which also uses Lighthouse). Using a platform like Ghost would drastically increase these scores and more importantly from an SEO perspective, Core Web Vitals.
So yeah, we’re keen to see how you might achieve this with Cloudflare workers as it’s been tried before by @stephane but it just got too hacky in the end to be a reliable solution.