Just a quick note about some new features in Tempus Stopwatch.
2021.7 - The app window is now resizable. Also added an accessibility feature to get a larger lap/round font size.
2021.6 - Added support for showing total time in the menu bar.
I've also been struggling with CPU performance issues related to SwiftUI in macOS Catalina + Big Sur. Apple seems to have fixed a few things in macOS Monterey. Thanks to everyone who reached out with bug reports/feedback.