I use django social auth for authentication in my website.I use the providers google-oauth2, facebook and github.The google and facebook login is boringly slow, whereas github login works perfect.
URL : dyuthi.in
The google and facebook login does not fail,but however, completes after atleast 30 seconds.The page waits for the redirect from authentication server to my site.
I have an integration right now with both Google OAuth 2 login and Facebook basic login, and neither of them is terribly fast, but they usually take less than 5 seconds, including all the back-and-forth. Can you offer more details?