Fix Mac Outlook Lag

If Outlook on macOS feels laggy while typing, this is usually the fix: turn off Predictive Text.

It is hidden in the UI, but takes 10 seconds:

1. Open a new email in Outlook.
2. Click into the message body.
3. Go to Edit > Spelling and Grammar.
4. Uncheck Predictive Text.

• If the option is grayed out, click back into the email body and try again.