First do what is suggested below. Then try to find find something like "compact folders" in the menu and do that right away! In addition when your mails are via IMAP and hold on a server, the server may be a bottleneck. Also don't poll for new messages excessively, every 5 minutes should be enough. You can always manually request new messages in the (rare, I guess) cases when you expect to receive a new message "right now". Best regards, jj P.S.: After about three decades of not using Windows I now use a borrowed Win10 Machine (for "Teams" for remote teaching). What a bloddy horror this O/S and software is! * Andres Valloud <ten@smallinteger.com> [Jun 01. 2020 15:12]:
Re: email performance, you may look into folder size. It seems many email clients these days like to load the entire index of folders into memory, and that the complexity associated with that has been kept linear or worse. For that reason, it may help to periodically move older emails to archive folders that a) don't change anymore (note how doing this will *substantially* cut down the size of your time machine backups), and b) presumably you don't open often and so the email client isn't tempted to load all the index into memory again. These tips help when using Thunderbird. HTH...
On 5/31/20 10:42, Henry Baker wrote:
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