if I close it and only work in the Inbox I have no issues.
So the database is too big for DT? Well I thought it´s specially made for large database.
so that means I cannot do anything against it and have to live with it - puh that´s sad.
But okay - at least I know now that it´s not a bug or wrong configuration.
Do a Spotlight search for Activity Monitor . Select our application in the list of processes. Press Command-Option-S to run a sample on it. When the sample window opens, press the Save button and save it to your Desktop.
Hold the Option key and choose Help > Report bug to start a support ticket. Please attach the process sample to the ticket.
I get the spinning ball all the time can´t be only because of a temporary backup - but the hin with the SSD is a good idea - as the database is on a connected external harddrive - I will move it to the internal SSD and see if that fixes the behaviour.
Just two databases are opended at the same time.
I transfered the database now to the internal SSD and so far I got no spinning ball anymore.
So it seems to have been the poor performance of the HDD in combination with a huge database.
I will monitor it but it seems to be fixed now by moving the database - thanks for your great support!
Glad you are getting to the bottom of this. Could be the USB cable, could be the SSD external disk. Maybe disk on verge of failure. Hard to tell. Perhaps, after getting everything copied across, use DiskUtility to do “First Aid”.