DirectFolders Pro 4.2 lag

In the past few days, on fully updated Win10, clicking on the system tray icon (or typing the hotkey, or double-clicking on the desktop or in an empty space in the File Explorer) often does nothing for 60 seconds, and then the pop-up finally appears.

Once I've gotten past that lag, it can then work properly in that one program for a while.

I have uninstalled and done a clean install, but that didn't help.

Has this been reported? Any suggestions?

And, is Win 11 supported?