Yes, I've tried many things, including a new profile. Compacting would help for a few days. Thunderbird just doesn't seem to do well with large mail archives going back more than a decade. That is my experience and the experience of others.
Also, I've met many people who experience similar performance issues, so I find it bothersome that because you've never encountered it you're asserting it does not exist.
This is also an issue that's span multiple machines and multiple clean installs.
Also, I've met many people who experience similar performance issues, so I find it bothersome that because you've never encountered it you're asserting it does not exist.
This is also an issue that's span multiple machines and multiple clean installs.