Ha,,, Hello... First of all, my device is a Mac M1 2021 model, and I changed my tablet to a used ctl-6100.
Originally, I was using the two shortcut keys [S] and [D] to zoom in and out. However, this suddenly became very janky (it automatically zoomed in again while zooming in and out), so I reset the shortcut keys and set a few that I normally used in addition to those.

However, when you press Cmd (Windows control) + opt (Windows Alt) + space on a MacBook, sometimes zooming in and out works, and sometimes it doesn't. / The space barine hand tool also works sometimes and sometimes doesn't. / Using the eyedropper by clicking on the upper part of the pen shortcut key sometimes works and sometimes does not.

If anyone knows why this is happening, please help! Is this a compatibility issue between Mac OS and Wacom? Sometimes the shortcut keys work and sometimes they don't, so it's very inconvenient, and there's a constant delay, which is inconvenient.
Because of this, I installed and uninstalled KTU, installed and uninstalled the tablet driver, and even bought a new tablet... It's so inconvenient that I can't do anything. Please...!