Start-up time unacceptable
Indesign is taking 5 minutes to start-up and open one file (on a Mac running Big Sur). After I double click on the file to open, it's taking 2 1/2 minutes to open the welcome screen (which I don't need) and then another 2 1/2 to 3 minutes to open the file. At various times throughout the process, it tells me "Indesign is not responding," but then it does.
This can't be the way it's supposed to work, is it????? HELP!
(I used CS5 for years and finally had to surrender and go to CC, so I'm not a novice.)