Thanks for your reply. Although I am not sure this is a particular situation given the number of posts about this on the Community (and you've answered most of them ). I will ask the support and see if they can do something about it.
I have the exact same problem. The embedded forms are extremely slow to load...And, as there are questions about this on the community since 2021, it seems that this issue has not been looked into by the Airtable team I think that I will just put a ...