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Old 09-13-2024, 02:49 PM   #1
Gordo29
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Calibre slow down
Since the last 3 or 4 updates my Calibre (currently on ver 7.17) has slowed down significantly. Not sure exactly when it started Have approx 1200 books in the database. Running on Windows 11 with a fairly fast CPU and lots of memory. Any ideas on what caused the slow down and how to fix? (Sorry if this has been discussed before, if so please send me in the right direction)
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Old 09-13-2024, 03:51 PM   #2
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What exactly has slowed down?

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Old 09-13-2024, 04:19 PM   #3
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FWIW, having 1200 books is a calibre library is not going to be the cause of any slowdown. I have over 5000 with no problems, and there are people on MobileRead with libraries in the high tens of thousands.
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Old 09-13-2024, 04:30 PM   #4
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What exactly has slowed down?

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Converting books, loading books, editing/adding metadata.almost everything. I tend to download large descriptions for the metadata book descriptions, could that be an issue?
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Old 09-13-2024, 05:54 PM   #5
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Um.... I'd suggest that this better belongs in the calibre forum; not the Kobo forum!
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Old 09-13-2024, 06:23 PM   #6
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Um.... I'd suggest that this better belongs in the calibre forum; not the Kobo forum!
Yep!
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Old 09-13-2024, 07:13 PM   #7
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Quote:
Originally Posted by Gordo29 View Post
Converting books, loading books, editing/adding metadata.almost everything. I tend to download large descriptions for the metadata book descriptions, could that be an issue?
Unlikely, if they were all War and Peace size you'd more likely get a memory fault.

Composite columns (columns derived from other columns via templates) can slow things down… but usually not everything.


If you're using a 3rd party anti-virus, turn it off… if you can. Or exclude all calibre related folders - install, configuration and libraries from its view.

Try running with no plugins.
Try running in Safe mode.
Try installing Portable, give it access to your library via the Switch/Create library option.

BR
Last edited by BetterRed; 09-13-2024 at 09:49 PM. Reason: grammar
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Old 09-14-2024, 08:13 AM   #8
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Quote:
Originally Posted by Gordo29 View Post
Since the last 3 or 4 updates my Calibre (currently on ver 7.17) has slowed down significantly. Not sure exactly when it started Have approx 1200 books in the database. Running on Windows 11 with a fairly fast CPU and lots of memory. Any ideas on what caused the slow down and how to fix? (Sorry if this has been discussed before, if so please send me in the right direction)
I wanted to ask here too, because I have a similar situation - searching for books, editing metadata takes ages.
But so far I've had neither the time nor the inclination to go looking for the problem.
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Old 09-14-2024, 03:44 PM   #9
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I wanted to ask here too, because I have a similar situation - searching for books, editing metadata takes ages.
But so far I've had neither the time nor the inclination to go looking for the problem.
I have 2 W10 systems I use regularly for various tasks (not just Calibre ) ,
Both have become 'laggy' (click and the operation does not happen as soon as it used to.) . The delay is noticeable. Both Defender and Malwarebytes come up clean.
<conspiracy hat on> Is M$ doing things to force an upgrade soon? </conspiracy>
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Old 09-14-2024, 05:06 PM   #10
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I haven't noticed any slowdown on my Windows 10 laptop (4 years old).
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Old 09-14-2024, 06:36 PM   #11
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I haven't noticed any slowdown on my Windows 10 laptop (4 years old).
7 year old Dell XPS 8920

BR
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Old 09-14-2024, 09:02 PM   #12
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Slowdowns will be because something on your computer is interfering with calibre, most likely an antivirus or security program.
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Old 09-15-2024, 04:53 AM   #13
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I haven't noticed any slowdown on my Windows 10 laptop (4 years old).
I now firmly believe that there is such a thing as a computer god who behaves in a similar way to Loki. He has a lot of fun pranking us again and again.

After I posted here yesterday, everything is fine again today.
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Old 09-15-2024, 07:31 AM   #14
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After I posted here yesterday, everything is fine again today.
Most likely your antivirus got a definition update in the background.
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