Chrome - Drawio Intense Lag

[ThePieMonster]

Preflight Checklist

• I agree to follow the Code of Conduct that this project adheres to.
• I have searched the issue tracker for a feature request that matches the one I want to file, without success.

Describe the bug
Drawio will lag out when there are more than ~20 images present in the diagram.

To Reproduce
Steps to reproduce the behavior:

1. Create a Drawio diagram with at least 20 images
2. Use the Chrome browser latest version
3. Try clicking or panning around the diagram

Expected behavior
The web page / diagram can be moved around with lagging out.

draw.io version (In the Help->About menu of the draw.io editor):

• draw.io version [21.3.6]

Desktop (please complete the following information):

• OS: [Windows 11]
• Browser [Chrome Version 113.0.5672.127]

[davidjgraph]

Can you attach the diagram you're testing with?

[imtrobin]

I'm seeing the same issue with 21.4.0

[davidjgraph]

Yet still no diagram....

[imtrobin]

I can't share that cos there's confidential info but it's over 10 images.

[imtrobin]

Is there something specific in the images you want to look at? Image size etc?

[ThePieMonster]

I can upload a test diagram that I made which is showing signs of the slowdown. @davidjgraph
Test_Diagram.zip

[mararad]

The attached file is 3.07 MB and it lags a bit.
Tested in Chrome Version 114.0.5735.199 (Official Build) (64-bit) and FF, diagrams.net 21.6.1 and Win 10 Pro.

[jeroenvriesman]

I see the same lagging in version v22.1.16, quite extreme/unworkable lag on a simple windows laptop (i5-1135G7, 2.4GHz, 8GB). Windows 10 enterprise 22H2.
To reproduce just create new diagram from cloud/IBM/any-example.
The lag takes the from of actual pauses I need to wait for when I try to move the drawio window.

[davidjgraph]

Please update and test again.

[jeroenvriesman]

Hi David,

v24.2.5 has almost the same lag. (I used the windows no-installer version).

[jeroenvriesman]

Update: I just tried version 20.8.16, same diagrams. No lag at all.
I will trey in-between versions to find the version which introduces this behaviour.

[davidjgraph]

If you disable extras->automatic bacukup on 24.2.5?

[jeroenvriesman]

Disabling automatic backup doesn't make any difference.

[jeroenvriesman]

Update: after trying several versions, all on the same windows 10 enterprise 22H2, i5-1135G7, 2.4GHz, 8GB the conclusion is that the lag is introduced with version 22.1.16, if I try both 22.1.15 and 22.1.16 (no-installer versions) then I see that 22.1.15 works perfectly well and 22.1.16 is unworkably slow.

[jeroenvriesman]

Another update: 22.1.16 on linux does not have this problem.
Could it be possible dat jgraph/drawio-desktop#1433 is introducing this behavior? Since it's the only change which would be interacting with the windows os differently compared to linux. A bit of a guess. If you have a windows no-installer 22.1.16 with this feature disabled I can test it. (does the code use feature flags?)

[davidjgraph]

Thanks for the detailed analysis. The key problem here is still the ability to reproduce the issue.

It might be that that release has some specific signature that an anti-virus doesn't like and scans it constantly. The fact you see it on Win and not Linux suggests something down that route. We have several million installs on win, yet just one report on a simple diagram.

Also, I don't think your issue is the same one as the OP. The result is the same, but the earlier posts are about large diagrams and those issues are fixed.

You're welcome to log another ticket, but this all sounds like a one-off issue specific to your machine, unfortunately.

[jeroenvriesman]

Hi again.

Whatever newer version of drawio I try, the problem persists.

I've attached an example drawing which shows the window-movement lag. It's just one of the IBM examples copied 5 times.

22.1.15 works perfectly well, al never versions have a performance problem which is easy to see, just try to move the drawio window on a windows PC.

The PC is definitely not a high performance one, but drawio 22.1.15 ans below works perfectly well.
lag_test_drawing.zip

[alderg]

The above test case does not slow down window movement on macOS in the online and desktop versions 24.4.14 and 24.4.13 for me. Please include the draw.io version number for your environment, as well as desktop or online, your operating system and browser and versions.

[davidjgraph]

This is long ticket and you're not the original poster @jeroenvriesman . I asked you politely first to log another ticket. Stop posting here and log another ticket.

[jeroenvriesman]

Ok, new ticket created.
jgraph/drawio-desktop#1780