I’m not seeing that, but my Xojo has slowed down, apparently getting slower with time. Like it used to be with long projects if you left Show Breakpoints on. Whether Monterey or something else, I don’t know.
What is the size of your project ?
The Xojo binary file is 28.2 MB, for what that’s worth.
You have dragged many images (icons) onto the Navigation pane, isn’t it ?
Did you tried to boot and only run Xojo (no other application ?
Sometimes, when memory is low I have troubles.
icns files (or Application Icons pasted to the project seriously enlarge the project size and project Read/Write time.
web site also talks about RAM trouble because of custom cursors…