Since iOS18, Mail is abysmal, emails can take forever to load in the app, on iPhone and iPad.

When I have attachments, forget it. I can't even be bothered to wait for them. I have to open and close app several times and even then they've not downloaded. Never ever had this problem prior to 18, and stupidly believed it would be addressed in 18.0.1. It's a real problem when you get a load of work emails with attachments, but even body of mail can also take time on some. Also the badge icons shows double the number of actual emails. Will they ever fix it? 'Suggestions' was never fixed, since it was introduced I've had it turned off, and I still regularly get them anyway.