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Previews take a long time to load
Posted: Tue Oct 07, 2025 6:45 am
by alee001
Since updating to version 1.9.4, every time I turn on my computer (Win11) and open XnView MP, it takes a long time to load the preview. For example, 5,000 images takes 4 minutes; 3,000 folders takes 9 minutes?!
I tried using version 1.9.3 for the same comparison, and both HDD and SSD load in just 10 seconds.
Is this related to the metadata update or a problem with the new version?
Re: Previews take a long time to load
Posted: Tue Oct 07, 2025 1:46 pm
by xnview
The metadata update add a little delay only the first time...
The problem is only after a startup of system?
Re: Previews take a long time to load
Posted: Tue Oct 07, 2025 2:13 pm
by alee001
xnview wrote: Tue Oct 07, 2025 1:46 pm
The metadata update add a little delay only the first time...
The problem is only after a startup of system?
It took me four hours to update the metadata.
This issue occurs every time I start my computer or reboot my system. Now, every time I access a folder or exit a folder, Xnview MP takes a long time to load and preview.
Strangely, I have to wait for the program to run for a while before the loading speed returns to normal.
Re: Previews take a long time to load
Posted: Tue Oct 07, 2025 3:22 pm
by xnview
what is the filesize of xnview.db?
Re: Previews take a long time to load
Posted: Wed Oct 08, 2025 2:07 am
by alee001
xnview wrote: Tue Oct 07, 2025 3:22 pm
what is the filesize of xnview.db?
The xnview.db file is approximately 3.5Gb.
Xnview MP's CPU load is approximately 6% when loading previews.
Re: Previews take a long time to load
Posted: Wed Oct 08, 2025 5:26 am
by xnview
and if you use XnView 1.9.3, no problem?
I've sent you a PM with a test version
Re: Previews take a long time to load
Posted: Wed Oct 08, 2025 2:03 pm
by alee001
xnview wrote: Wed Oct 08, 2025 5:26 am
and if you use XnView 1.9.3, no problem?
I've sent you a PM with a test version
Unless version v1.9.4 changes the way the database is searched, it is still more efficient to use the old version v1.9.3. I hope that your next new version will improve it. Thank you for your attention.
Re: Previews take a long time to load
Posted: Wed Oct 08, 2025 2:23 pm
by xnview
alee001 wrote: Wed Oct 08, 2025 2:03 pm
Unless version v1.9.4 changes the way the database is searched, it is still more efficient to use the old version v1.9.3. I hope that your next new version will improve it. Thank you for your attention.
Please check the test version sent by PM, i need to understand the problem
Re: Previews take a long time to load
Posted: Thu Oct 09, 2025 2:29 am
by alee001
xnview wrote: Wed Oct 08, 2025 2:23 pm
alee001 wrote: Wed Oct 08, 2025 2:03 pm
Unless version v1.9.4 changes the way the database is searched, it is still more efficient to use the old version v1.9.3. I hope that your next new version will improve it. Thank you for your attention.
Please check the test version sent by PM, i need to understand the problem
I've noticed that after launching v1.9.4, each time I access a folder, it takes a long time to load the first time, but subsequent accesses are normal.
v1.9.5 doesn't have this issue yet, and its speed is close to v1.9.3.
Re: Previews take a long time to load
Posted: Thu Oct 09, 2025 6:02 am
by xnview
alee001 wrote: Thu Oct 09, 2025 2:29 am
v1.9.5 doesn't have this issue yet, and its speed is close to v1.9.3.

Thanks to your detailed description I can reproduce
the problem.
Re: Previews take a long time to load
Posted: Mon Oct 13, 2025 6:46 am
by xnview
This problem is supposed to be fixed in
XnView MP 1.9.5. Please check and confirm the bug fix here.