This exactly. On Firefox Nightly, time to first interaction for me is 30 seconds.

I've found myself going to gmail.com, searching for something, and then waiting 30 seconds for "Loading..."to transform to "Something's not right". I've just started doing all reading on the Android app.

It's still easier for me to write at my laptop than on my phone, so this miserable experience happens to me multiple times a week. I've started to deeply despise the webapp.