Greetings! I have been using Thunderbird for the last 5-1/2 years since I came to this job.
Outlook was not installed on my computer and I like FireFox, so I installed Thunderbird.
I find it much easier to use than Outlook and like it a lot.
But ever since the last update it lags very badly. I can click Delete on an email and it will sit there for 60 seconds or more "Not Responding"
I am using a newer Windows 10 machine with plenty of RAM, which tells me it must be something with the software.
