Thunderbird lags badly when downloading emails. CAUSE: unknown. problem gone after updating to 31.6.0, but nothing changed in TB that should help the problem

Question

Any email folder that isn't downloaded by thunderbird causes the entire program to lag extremely bad. I can't read emails, access emails or do anything till downloading is done. Is there anything I can do to help the program perform better?

Answer 1

This is Thunderbird Support. You have contacted them. I am busy earning a living, as are most of the other volunteers. The result is questions that actually contain information get priority. We simply do not have time to play twenty questions to learn about your system and what is actually happening most of the time.
If your using McAfee or AVG that is probably your issue. Otherwise:
To diagnose problems with Thunderbird, try one of the following:
*Restart Thunderbird with add-ons disabled (Thunderbird Safe Mode). On the Help menu, click on "Restart with Add-ons Disabled". If Thunderbird works like normal, there is an Add-on or Theme interfering with normal operations. You will need to re-enable add-ons one at a time until you locate the offender.
*Restart the operating system in '''[http://en.wikipedia.org/wiki/Safe_mode safe mode with Networking]'''. This loads only the very basics needed to start your computer while enabling an Internet connection. Click on your operating system for instructions on how to start in safe mode: [http://windows.microsoft.com/en-us/windows-8/windows-startup-settings-including-safe-mode Windows 8], [http://windows.microsoft.com/en-us/windows/start-computer-safe-mode#start-computer-safe-mode=windows-7 Windows 7], [http://windows.microsoft.com/en-us/windows/start-computer-safe-mode#start-computer-safe-mode=windows-vista Windows Vista], [http://www.microsoft.com/resources/documentation/windows/xp/all/proddocs/en-us/boot_failsafe.mspx?mfr=true" Windows XP], [http://support.apple.com/kb/ht1564 OSX]
; If safe mode for the operating system fixes the issue, there's other software in your computer that's causing problems. Possibilities include but not limited to: AV scanning, virus/malware, background downloads such as program updates.