Dear Thunderbird Community, I am a die hard fan of the Thunderbird Mail Client, particularly on Ubuntu-based operating systems and have been a loyal user for years. However, with each new "upgrade" or "improvement", it seems to me there is always that lurking problem of HANGING SLOWNESS. Why do I frequently get these warning signs of "BUSY" or "FORCE QUIT" "WAIT", on a routine basis. Yes, my HP Spectre x360 laptop is from 2016, and it's aging a bit; but I only have the Firefox Developer Edition browser open at the same time as my Thunderbird Client. It's not like I'm using all of the systems resources. So, why the frequency of hanging slowness? It's very frustrating when you're inspired by an email message that you're quickly typing down and your thought process is rudely interrupted, because you're waiting for the Thunderbird Mail Client app to return to normal? Is there something inherently going on in the background is that is slowing down this app's performance? It's a very bizarre problems that really affects your daily productivity and communication goals. Please shed insight or provide tips and/or advice. Thanks!