I have recently been experiencing hangs and extremely-long delays in Windows Explorer (file explorer). This is on Windows 10, with the latest feature update and the April 2020 cumulative update. I downloaded and installed ShellExView (Shell Extensions Viewer) by NirSoft and turned off all Windows Explorer extensions, then turned them back on in groups. I am 100% able to reproduce that InSync is the cause of the slowness and hands and nothing else.
What do I do, short of uninstalling and asking for a refund?