UWP app laggy (only) under Windows 11

Telestes 21

Hello,

since several years I have an UWP app (card game) in the Microsoft Store. It is well tested and runs fluidly on Windows 10 even on an i5 CPU with only onboard graphics. The app UI is built with XAML and the program code is written in C++. Last week I bought a brand new Lenovo ThinkBook 16p laptop with AMD Ryzen 5800H CPU and Windows 11 Pro installed. GPU's are AMD Radeon and NVIDIA GeForce RTX 3060.

To my bad surprise on this machine all animations of my app (made of XAML storyboards) are extremly laggy and even the sound output is never in time. I tested with both GPU's and all power options, drivers and Win11 are updated.

Any ideas what could cause these issues?

Thanks

Ken Tucker 5,851 Reputation points

2022-02-21T12:32:59.557+00:00

What version of uwp are you targeting? If you try and debug your app on windows 11 computer does the application timeline show anything?

https://learn.microsoft.com/en-us/visualstudio/profiling/application-timeline?view=vs-2022
Telestes 21 Reputation points

2022-02-21T13:13:04.38+00:00

Last version was developed under Win10 and VS2019. Thought this should run without any modifications under Win11 too. Will compile and profile under Win11 with VS2022 in the next days. But a testing person reported to me, that on his Win11 with Intel CPU all is fine. So couldn't this be an AMD CPU related issue?
Ken Tucker 5,851 Reputation points

2022-02-21T22:26:25.023+00:00

possible there was patch for amd performance issues on win 11

https://www.howtogeek.com/763433/the-fix-for-slow-amd-processors-on-windows-11-is-here/
Roy Li - MSFT 33,256 Reputation points Microsoft Vendor

2022-02-22T07:29:43.01+00:00

Do you have another Windows 11 device with a different configuration to test? Will it give the same behavior?
Telestes 21 Reputation points

2022-02-22T09:13:03.523+00:00

One testing person with Windows 11 and (older) Intel CPU reported that he doesn't have the same lagging animations. But I know that he made a 'bypass' Win11 installation on his machine with unsupported Win11 CPU. Can't believe that parts of XAML are not working on AMD as on Intel CPU's but only MS can clarify this.
Telestes 21 Reputation points

2022-02-22T09:15:25.737+00:00

I heard of it last fall and checked my latest Windows 11 updates which shows that the AMD patch is already installed with one of the latest updates KB5010414.
Roy Li - MSFT 33,256 Reputation points Microsoft Vendor

2022-02-23T05:49:27.73+00:00

I've talked with the team. Currently, there is no more we could do for such a scenario because this issue seems to be more related to the hardware. What we could suggest is that please submit this in the Feedback Hub. You could find the Feedback Hub in the Start Menu.
Telestes 21 Reputation points

2022-03-02T11:38:43.47+00:00

It turned out that the Realtek audio driver on my new Lenovo ThinkBook 16p laptop with AMD Ryzen 5800H CPU and Windows 11 Pro installed is causing the described issues. If I deactivate it in the Windows settings then all XAML based animations run fine at normal speed. Application Timeline profiling shows that, although all audio is directly packed inside the UWP app, the Realtek audio driver loads those (WAV) far to slow. The driver is from August 2021 but no newer version is available for the Lenovo 16p AMD with Windows 11.

If suitable, preloading audio assets is one way to fix the described problem.
Roy Li - MSFT 33,256 Reputation points Microsoft Vendor

2022-03-03T05:26:29.663+00:00

Glad to hear you've found out the issue and it is appreciated to share it here. Have a nice day.

Accepted answer

Roy Li - MSFT 33,256 Reputation points Microsoft Vendor

2022-03-07T06:44:54.79+00:00

Hello,

Welcome to Microsoft Q&A!

After discussion, the issue seems to be related to the Realtek audio driver. Deactivating this driver in Windows settings will make all the XAML animations run correctly.

Thank you.

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