I was using 14.0.2.185 snapshot to test QTCREATORBUG-31429 and I noticed than when building at the end of the build Qt Creator would hang for a while and when it came back I would get a load of those little popups on the right saying that it was parsing the qml files, similar to how it does when you first open a project.

It was doing this for every build/compile.

I've had to go back to 14.0.1 as it was too slow.

( https://download.qt.io/snapshots/qtcreator/14.0/14.0.2/185/ )