Groupy Groups Too Tightly

Last installed Groupy in 2018 and shortly after removed it.

Reinstalled Groupy again just this week, got really excited about using it and then removed it again.

Using Groupy seems to bind up my desktop and reduces performance of just about all of the open windows.  I usually had several groups of several tabs each open.  I was able to Save Groups and with the exception of Outlook, was able to open the groups.  (Groupy opens 5 windows of Outlook:  Mail, Calendar, Contacts, Trasks and Notes, but won't open them in that same order each time it opens, so end up having to rejigger the tabs to get my preferred workflow back.)