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Old 01-31-2023, 10:42 PM   #1
ldxza
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Viewer is slow
Hi,

So, I am having issues with the viewer app; even when set to page mode. It would take time to load a page (especially with CBZ files with lots of images). Flow mode would be worse as it would be slow and jump to various points in the book. Granted, I am using a Asus transformer laptop with just an under-powered Atom CPU.

But, if I use things like Okular, everything is smooth with its flow mode (even with huge books). Only reason why I can't use Okular is because it doesn't have great touch support. If I go full screen for example, I can't get out of it unless I attach the keyboard again. Otherwise, I would just use Okular as a replacement.

So, is there a way to make the viewer more responsive? For anyone not aware, this is a Linux laptop/tablet. Not Windows (I completely hate Windows today); not that Windows would work decently on this device anyways.
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Old 01-31-2023, 11:03 PM   #2
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IIRC CBZ is rendered as a single HTML file with all images embedded, on a memory constrained device that will cause swapping and hence slowness. The reason its done that way is because otherwise it will not work in multiple pages per screen mode.

You could convert your CBZ to EPUB that might slpit up the images into one per html file if the conversion doesnt you can always plit manually.
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Old 01-31-2023, 11:14 PM   #3
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Originally Posted by kovidgoyal View Post
IIRC CBZ is rendered as a single HTML file with all images embedded, on a memory constrained device that will cause swapping and hence slowness. The reason its done that way is because otherwise it will not work in multiple pages per screen mode.

You could convert your CBZ to EPUB that might slpit up the images into one per html file if the conversion doesnt you can always plit manually.
Okay. But I also have an issue with big Mobi files too. I forgot to mention that.
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Old 02-01-2023, 12:41 AM   #4
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Just would like to mention that my screen is 800x1280 when in portrait mode. Which output profile would be best for this so that the images fit the screen properly?
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Old 02-01-2023, 12:59 AM   #5
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Originally Posted by ldxza View Post
Okay. But I also have an issue with big Mobi files too. I forgot to mention that.
MOBI files are also one large HTML file. Convert them to EPUB and you will be fine.
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Old 02-01-2023, 01:00 AM   #6
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Originally Posted by ldxza View Post
Just would like to mention that my screen is 800x1280 when in portrait mode. Which output profile would be best for this so that the images fit the screen properly?
It doesnt matter the viewer automatically scales images to fit.
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Old 02-01-2023, 02:05 AM   #7
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MOBI files are also one large HTML file. Convert them to EPUB and you will be fine.
I discovered that. Thanks.
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Old 02-01-2023, 02:07 AM   #8
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It doesnt matter the viewer automatically scales images to fit.
How? Because I have used the output profile and the images don't fit properly after converting. So, I've been trying to figure this out.
Last edited by ldxza; 02-01-2023 at 02:11 AM.
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Old 02-01-2023, 03:47 AM   #9
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How? Because I have used the output profile and the images don't fit properly after converting. So, I've been trying to figure this out.
Dont fit when viewing what file? A cbz?
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Old 02-01-2023, 05:54 AM   #10
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Dont fit when viewing what file? A cbz?
No. I convert the CBZ file to Epub or PDF. But if I keep it as a CBZ file, it will fit properly.
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Old 02-01-2023, 06:17 AM   #11
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Dont fit when viewing what file? A cbz?
Strange thing is, the first page fits properly.
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Old 02-01-2023, 06:24 AM   #12
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Originally Posted by ldxza View Post
No. I convert the CBZ file to Epub or PDF. But if I keep it as a CBZ file, it will fit properly.
Works for me converting cbz to epub and viewing in paged mode
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Old 02-01-2023, 06:38 AM   #13
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Works for me converting cbz to epub and viewing in paged mode
What settings do you use?
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Old 02-01-2023, 06:38 AM   #14
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Old 02-01-2023, 06:48 AM   #15
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Tried it. Does not fit the screen at all. Only the first page fits. I wonder why.
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