Beach balls spinning. Outlook crashing. Phone freezing up. Your email need not be so slow. Here’s why it likely is unusable for you:
You don’t file or archive any messages, i.e. you have thousands of messages in your inbox.
You don’t use any filters to automatically move messages that are old or irrelevant.
You don’t use webmail instead of Outlook or another mail application.
You don’t use a strong email provider and instead us the free one that comes with your web hosting provider or registrar.
You insist on storing all your mail locally on your computer instead of downloading only what you actually need to see.
You aren’t asking a professional “why don’t you have the same problems I do with email?”
It doesn’t have to be so bad. Just adjust your expectations and ask a pro how they avoid it. Email accumulates like a fast-growing weed and needs regular pruning (archiving) and pesticides (spam-filters).
With regular attention and investment in tools for auto-replies, return-later, and short, simple messaging, you need not suffer.
You’re going to spend hours on email, why not make it more bearable?