After the update to the new version of Thunderbird, it is running slow with "not responding" messages. It takes a few minutes to download emails from Google Mail but eventually works. I run widows 10 on 64bit Del laptop with 8GB RAM. I cannot upgrade to Windows 11 as my system will not support it.

Processor Intel(R) Core(TM) i3 CPU M 370 @ 2.40GHz 2.39 GHz Installed RAM 8.00 GB (7.80 GB usable) System type 64-bit operating system, x64-based processor