I agree!
We’ve recently spent a lot of time working on our site load speed and overall performance. The only way to get speeds to a remotely acceptable level (for users and search engines) was to load Hubspot asynchronously, and set forms to load right at the end of the process. Even that couldn’t get our mobile speeds above 50(!) in Lighthouse. There’s so much bloat in the Hubspot code - especially around leadflows.js.
Google has applied a mobile-first crawling policy for years, and recent updates have focused on user experience and site performance, we’re finding Hubspot’s failure to resolve this problem is causing real issues for our SEO.
It seems the only fix is to rip Hubspot out of our site. Which I really really don’t want to do… but, like you, I’ve heard plenty from other automation providers recently.