Data driven categories: prevent auto-update to speed up imatch?

[meyersoft]

Because of my very slow imatch behaviour (see https://www.photools.com/community/index.php?topic=2812.0), I deleted all my data driven categories (after export of course  .
This helped to speed things up a bit.

So my question is: Can I prevent auto-update of data driven categories?
I found how to force an update, but not how to prevent it.

Exporting, deleting and then only importing data driven categories if needed to have a better-responding imatch system is no real solution...

[herman]

You can toggle the switch in preferences, see attachment.

[attachment deleted by admin]

[meyersoft]

Thank you - how could I overlook this...?

[herman]

Hidden in plain sight, it happens at least once to all of us