Upgrade StorageZotero PDF rendering is painfully slow, especially when zoom set to "page-width"
Debug ID: D2007851754
Whenever I try to open a typical two-column IEEE paper (downloaded from the official IEEE website, e.g. https://doi.org/10.1109/TAC.2019.2949350) in Zoero with Version 7, the PDF is rendered very slow. I see the content appearing line-by-line and first the left column of each page is displayed, before the right column follows. When scrolling through the document, the rendering continues like before and it is not a "snappy experience" at all.
I am using Zotero 7.0.5 64-bit on Windows 11, ThinkPad T14 Gen2, 3840x2160 screen, Intel Core i5-1135G7 power saving mode disabled. Disabling the synching capabilities in the settings did not change anything. Also, a clean installation in the Windows Sandbox and then loading the content from my Zotero cloud did not lead to any better performance.
On an older computer of one of my colleagues (4th Intel Core i7, lower screen resolution), this problem does not appear (also not in "page-width" zoom).
Steps to reproduce (on my machine):
0. Install Zotero and load data from the Zotero cloud. Disable synching if you like and close Zotero.
1. Start Zotero.
2. Open the PDF of, e.g., this paper: https://doi.org/10.1109/TAC.2019.2949350.
3. Set the zoom to "page-width".
4. Close the PDF tab.
5. Re-open the PDF and the rendering is slow. Slows rendering can be observed when scrolling too.
Whenever I try to open a typical two-column IEEE paper (downloaded from the official IEEE website, e.g. https://doi.org/10.1109/TAC.2019.2949350) in Zoero with Version 7, the PDF is rendered very slow. I see the content appearing line-by-line and first the left column of each page is displayed, before the right column follows. When scrolling through the document, the rendering continues like before and it is not a "snappy experience" at all.
I am using Zotero 7.0.5 64-bit on Windows 11, ThinkPad T14 Gen2, 3840x2160 screen, Intel Core i5-1135G7 power saving mode disabled. Disabling the synching capabilities in the settings did not change anything. Also, a clean installation in the Windows Sandbox and then loading the content from my Zotero cloud did not lead to any better performance.
On an older computer of one of my colleagues (4th Intel Core i7, lower screen resolution), this problem does not appear (also not in "page-width" zoom).
Steps to reproduce (on my machine):
0. Install Zotero and load data from the Zotero cloud. Disable synching if you like and close Zotero.
1. Start Zotero.
2. Open the PDF of, e.g., this paper: https://doi.org/10.1109/TAC.2019.2949350.
3. Set the zoom to "page-width".
4. Close the PDF tab.
5. Re-open the PDF and the rendering is slow. Slows rendering can be observed when scrolling too.
- D742796515
- D418583377
Here is a Debug ID D1985479981 from the troubleshooting mode, where I opened a paper in the page-width zoom setting and then also zoomed in and out after it was rendered completely.
layers.acceleration.disabled false
layers.acceleration.force-enabled false
In single-column papers, the issue seems to appear a bit less pronounced. In general, the rendering is slow in areas or the PDF, where tables, figures or more equations appear and the different elements (like the lines / grid of a table, subequations, lines of a text paragraph) are rendered one after the other.
None of the above papers have rendering issues in Firefox.
1) Does it happen with all PDF files?
2) Is there a difference if you disable all third-party plugins?
3) Is Zotero syncing at the time?