topic Re: QlikView Desktop September 2025 IR/SR1/SR2 – Severe Performance/Responsiveness Issues in QlikView

QlikView Desktop September 2025 IR/SR1/SR2 – Severe Performance/Responsiveness Issues

jonip_78 — Wed, 26 Aug 2026 07:18:00 GMT

Hi,

We have QlikView Server and QlikView Desktop installed on a Windows Server 2022 machine, which we access via Remote Desktop.

Earlier this year, I upgraded our QlikView installation from May 2023 to September 2025 SR1. After the upgrade, I noticed that QlikView Desktop had become extremely slow and unresponsive.

When QlikView Desktop is started, the menus and the application itself initially seem to work normally. However, as soon as I open a QlikView document, the application becomes very sluggish. On AccessPoint everything works fine.

For example:

- Clicking the QlikView > About menu can take 2–4 seconds before anything happens.
- Right-clicking an object on a report can take several seconds before the context menu appears.
- Scrolling in list boxes is very jerky and noticeably delayed.
- In general, there is a significant delay between clicking something and QlikView responding.

At the time, I did not have time to investigate the issue further.

Today I uninstalled QlikView Desktop and installed the May 2023 version again. The performance immediately returned to normal. When clicking objects or menus in a QlikView document, everything responds almost instantly.

I then upgraded QlikView Desktop to May 2024 SR1, and the performance was still normal.

After that, I upgraded to September 2025 IR, and the performance problem immediately returned.

So far, my testing looks like this:

- May 2023: Good performance
- May 2024 SR1: Good performance
- September 2025 IR: Very slow / significant UI delays
- September 2025 SR1: Very slow / significant UI delays
- September 2025 SR2: Very slow / significant UI delays

I have also disabled the antivirus temporarily, but this did not make any difference.

Has anyone else experienced similar QlikView Desktop performance or UI responsiveness issues with the September 2025 releases?

Re: QlikView Desktop September 2025 IR/SR1/SR2 – Severe Performance/Responsiveness Issues

marcus_sommer — Wed, 26 Aug 2026 08:14:33 GMT

Take a look if the hints from this post are helpful:

Screen Refresh Rate - Qlik Community - 2541802

Re: QlikView Desktop September 2025 IR/SR1/SR2 – Severe Performance/Responsiveness Issues

jonip_78 — Thu, 27 Aug 2026 04:55:07 GMT

I did notice that post, but I’m not sure the OP is experiencing the same issue. Their problem seems to occur even when no files are open in QlikView Desktop, and it sounds more like a graphical/rendering issue.

In my case, the problem only starts when a .qvw file is opened. If no document is open, QlikView Desktop works perfectly fine.

Re: QlikView Desktop September 2025 IR/SR1/SR2 – Severe Performance/Responsiveness Issues

marcus_sommer — Thu, 27 Aug 2026 09:35:18 GMT

I think it's a graphic issue and not related to the associative/calculation engine because things like moving an object does not trigger a calculation and scrolling within a listbox/table only after n extra rows.

Therefore try a few of the suggestions from the mentioned post to exclude systematically the potentially causes. I think I would start with the desktop clinet and an absolute clear new-installation + ensuring that there is no previous configurations (removing the settings.ini after a backup) and creating a new application with a few dummy inline-data (no actions/macros, easter egg stuff, extensions, bookmarks, connections, ...).

Re: QlikView Desktop September 2025 IR/SR1/SR2 – Severe Performance/Responsiveness Issues

MVW — Sat, 29 Aug 2026 18:50:23 GMT

@marcus_sommer are you not seeing this slowness in Qlikview desktop in the September 2025 versions?

Re: QlikView Desktop September 2025 IR/SR1/SR2 – Severe Performance/Responsiveness Issues

marcus_sommer — Mon, 31 Aug 2026 05:50:45 GMT

We didn't upgrade yet to 2025 (various reasons).

Re: QlikView Desktop September 2025 IR/SR1/SR2 – Severe Performance/Responsiveness Issues

jonip_78 — Mon, 31 Aug 2026 09:21:19 GMT

We still had our old Windows Server 2012 R2 Qlik Sense server online, and it did not have QlikView installed.

I decided to test this by installing QlikView Desktop September 2025 SR2 on that server as well, and I experienced exactly the same performance issue there when opening reports.

I also created a new QlikView document using a simple inline load with 20 rows and added a list box to the user interface. This worked normally, without any performance issues.

This suggests that the problem may not be specific to our Windows Server 2022 environment or our particular server configuration.

Re: QlikView Desktop September 2025 IR/SR1/SR2 – Severe Performance/Responsiveness Issues

jonip_78 — Mon, 31 Aug 2026 09:23:10 GMT

I copied one of our QlikView documents to the server where I tested it with QlikView Desktop September 2025 SR2.

The document contains a Dashboard with four bar charts, nine KPIs (Text Objects), and a list box + some titles etc (Text Objects). The document is approximately 500 MB in size and works well with QlikView Desktop versions prior to September 2025.

With September 2025 SR2, however, the document was practically unusable. Almost every interaction had a significant delay — for example, clicking something or right-clicking an object could take several seconds before QlikView responded.

I started deleting objects from the Dashboard to see if I could identify what was causing the problem. When I deleted one of the Text Objects containing the expression =Now(), the severe performance issue disappeared.

The document is still slightly slower than with May 2024 SR1, but it is now usable.

For example, with May 2024 SR1, when I right-click a Text Object, the context menu opens immediately. With September 2025 SR2, it takes approximately one second. This is still slower, but it is no longer several seconds and the document is usable.

Re: QlikView Desktop September 2025 IR/SR1/SR2 – Severe Performance/Responsiveness Issues

marcus_sommer — Mon, 31 Aug 2026 09:36:05 GMT

It hints for an incompatibility between the QlikView releases which created and/or saved the qvw's. In the earlier days there was a clear recommendation to migrate from one major-release to the next major-release and not skipping one.

Means open + running + storing the apps to ensure that new/changed features/settings were properly adjusted. Further to have no mismatch between releases which touch the apps - means all desktop clients on the server as well as one each developer machine and of course also the server should be the same. In many scenarios the users don't experience any issues if the above mentioned release-stuff isn't implemented so stricly but it remains some risks - and if anything strange happens it should be the first to look for.

Beside this could now() - there are also warnings of the use within the docu - really becoming a performance killer - especially if it's implemented within variables because their change is a trigger for further calculations. The reason of the issue since QV 2025 may a change or a switch within an underlying library which not query the system-time each milli-second else now in nano-seconds and/or the counter how often the query is performed within a second changed ...

Re: QlikView Desktop September 2025 IR/SR1/SR2 – Severe Performance/Responsiveness Issues

jonip_78 — Mon, 31 Aug 2026 12:19:40 GMT

I did some further testing with different QlikView documents.

In the document I tested earlier, one of the Text Objects contained the Now() function. The document was extremely slow with September 2025 SR2. After removing the Text Object containing Now(), the performance improved significantly, although the document is still noticeably slower than with earlier QlikView versions.

I then tested another document where I could not find any use of Now(). This document was also slow, although somewhat faster than the first one.

When I added a simple Text Object containing Now() to this second document, the performance became extremely slow, and navigating the QlikView menus also became very sluggish.

Re: QlikView Desktop September 2025 IR/SR1/SR2 – Severe Performance/Responsiveness Issues

MVW — Mon, 31 Aug 2026 14:15:02 GMT

Does this happen if you make a brand new document and add the Now() in text object? We've noticed this version is much slower in non-webview mode but I personally have not seen a difference adding Now() in text objects when I tried it. We are using September 2025 SR2.

Re: QlikView Desktop September 2025 IR/SR1/SR2 – Severe Performance/Responsiveness Issues

marcus_sommer — Tue, 01 Sep 2026 06:47:17 GMT

Take a look on the warning hint here:

now Script and chart function | Qlik Cloud Help

It relates officially to the Cloud but is IMO further relevant for QlikView even if their document-part the warning isn't mentioned:

now - script and chart function | QlikView Help

What's the aim of using now() ?

Re: QlikView Desktop September 2025 IR/SR1/SR2 – Severe Performance/Responsiveness Issues

jonip_78 — Tue, 01 Sep 2026 09:38:38 GMT

I haven't yet tested whether the same issue occurs in a completely new QlikView document.

I only noticed the Now() issue by coincidence. One of our older reports was significantly slower to use than the others, so I started investigating what could be causing it. I eventually found that for some reason one of the Text Objects contained the Now()function.

I just wanted to mention this because, at least in our environment, using the Now() function seems to make the performance issue significantly more noticeable with the September 2025 versions. No problems with older versions.

I will also test this by creating a completely new document and see how it behaves.

Re: QlikView Desktop September 2025 IR/SR1/SR2 – Severe Performance/Responsiveness Issues

jonip_78 — Tue, 01 Sep 2026 11:06:51 GMT

I have now done some testing with a new QlikView document.

First, I created a new document in September 2025 SR2 with a simple inline load containing around 50 rows of data. I then added a Text Object with the expression =Now(). In this case, I could not notice any performance issues. The UI remained responsive and the QlikView menus worked normally.

I then created another new document and loaded a single QVD file containing approximately 577 MB of data, 57 columns, and 7 million rows.

After loading the QVD, I added a new Text Object to the UI with a width of 1000 and a height of 3000, and then scrolled down the page. Compared to May 2024, the scrolling was noticeably more jerky in September 2025 SR2. The scrollbar movement is not smooth, which makes it clear that something is not quite right.

However, opening the Text Object properties and navigating the QlikView menus were still mostly responsive at this point.

I then added =Now() to the Text Object.

After doing that, QlikView Desktop became extremely slow. Opening the Text Object properties and even navigating the QlikView menus became very sluggish, with noticeable delays after clicking.

If I would now remove the Now() function from the Text Object and start adding more objects to the document, such as charts, tables, and KPIs, I am fairly confident that editing and navigating the document with September 2025 releases would gradually become as slow as it is in all of our existing QlikView reports.

Re: QlikView Desktop September 2025 IR/SR1/SR2 – Severe Performance/Responsiveness Issues

marcus_sommer — Tue, 01 Sep 2026 11:19:27 GMT

Beside the testing - what's the aim of using now() within an productive application ?

Re: QlikView Desktop September 2025 IR/SR1/SR2 – Severe Performance/Responsiveness Issues

jonip_78 — Tue, 01 Sep 2026 11:25:18 GMT

None. Someone had used Date(Now()) in a Text Object in one of our older applications for some reason. I have already fixed it from the production application.

I only kept it for testing because it makes the performance issue in the September 2025 versions much more noticeable and should be easier to reproduce.

Re: QlikView Desktop September 2025 IR/SR1/SR2 – Severe Performance/Responsiveness Issues

MVW — Tue, 01 Sep 2026 11:40:20 GMT

September 2025 version makes everything we have slow in the desktop mode that we use for app development. Even the default Start Page takes a few seconds to render the objects on that page.

Re: QlikView Desktop September 2025 IR/SR1/SR2 – Severe Performance/Responsiveness Issues

jonip_78 — Tue, 01 Sep 2026 11:54:28 GMT

Oh yeah, I had the Start Page disabled. If I go to Help > Show Start Page, the difference is pretty obvious. In May 2024, the Start Page opens almost immediately (less than a second), whereas in September 2025 it takes several seconds (3-4) to render.

Re: QlikView Desktop September 2025 IR/SR1/SR2 – Severe Performance/Responsiveness Issues

marcus_sommer — Tue, 01 Sep 2026 11:56:37 GMT

Make sure that you check all already hinted possibilities - especially to make a complete new start with QV 2025 which inherits nothing - no earlier installation, user-settings, applications ... nothing.

Re: QlikView Desktop September 2025 IR/SR1/SR2 – Severe Performance/Responsiveness Issues

jonip_78 — Tue, 01 Sep 2026 12:01:54 GMT

My earlier testing was done on a clean server where I installed QlikView Desktop September 2025. The test applications were created on that, and they show the same performance issue compared to May 2024 on another server.