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Old 03-30-2025, 11:42 AM   #7
compurandom
Wizard
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Posts: 1,014
Karma: 500000
Join Date: Jun 2015
Device: Rocketbook, kobo aura h2o, kobo forma, kobo libra color
Quote:
Originally Posted by abe View Post
Not sure if that's possible ; my kobo libra 2 just became slower after I updated metadata and created collections (based on calibre tags) . Can it be that it slowed things down that much?
I have found that the number of books in a category can cause slow downs.
It's worse with older model devices.

I have maybe 100-200 categories, and I've found that if I put more than 100 books in any one category, it causes problems on my older devices. My newer devices seem to take 150+ without an issue. So this threshold is not fixed and may even depend on number of categories.

The UI performance is only moderately impacted by this, but sync is absolutely killed by having too many books in a category. Not sure why side loaded books and categories would mess with sync, but it does.
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