https://bugs.kde.org/show_bug.cgi?id=440169
--- Comment #7 from Michał Staruch <michal.star...@gmail.com> --- Halla: I've just created simple Windows app. (slightly modifying Windows Desktop Application template coming with Visual Studio 2019 Community Edition) to count WM_MOUSEMOVE messages coming into main app window - and when I constantly moved the cursor over the app. window the event counter reached almost 10000 during 10 seconds. So it doesn't look like limitation of the OS to me. -- You are receiving this mail because: You are watching all bug changes.