I am experiencing consonant and repeated slowness with Thunderbird for multiple months now. I will be typing an email message and then I will see the circle and then a message that Thunderbird is not responding. Sometimes when I get access again the email message window will have lost focus. While trying to execute spell checking it again is unresponsive. I thought perhaps that the calendar was causing the issue but closing that tab did nothing to relieve the slowness. I have four processes of Thunderbird running and I am running Windows 11 Pro. I have the current version of Thunderbird installed. I have using Thunderbird for many years now and the constant unresponsiveness is extremely irritating. This also happens when Thunderbird is preparing to display reminders. I appreciate your assistance. Thank you.