After upgrading to version 11.2.1, the usercontrol response speed has become very slow.

[nipeone]

Describe the bug

I designed a usercontrol to display search images and text content. Each page shows 20 records, and each record is wrapped in the usercontrol. With version 11.2.0, resizing the mainform was very smooth, but after upgrading to version 11.2.1, the response speed has significantly slowed down, and it feels very laggy.

To Reproduce

<UserControl xmlns="https://github.com/avaloniaui"
             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
             x:Class="OmnipocketLiteAvalonia.SearchResultItem">
    <Border BorderBrush="{DynamicResource SystemControlForegroundBaseMediumBrush}" 
            BorderThickness="1" Margin="0,0,0,10" Padding="10" CornerRadius="15">
        <Grid ColumnDefinitions="Auto,*">
            <Image Grid.Column="0"
				   x:Name="DocTypeImage"
				   Width="64"
				   Height="64"
				   Margin="0,0,10,0" />
            <StackPanel Grid.Column="1">
                <TextBlock x:Name="TextContent"
						   TextWrapping="Wrap"
                           Foreground="{DynamicResource SystemControlForegroundBaseHighBrush}"
                           Margin="0,0,0,5"/>
                <Separator Height="1"
						   Margin="0,5,0,5"
                           Background="{DynamicResource SystemControlForegroundBaseLowBrush}"/>
                <Button x:Name="FilePathButton" 
                        Foreground="{DynamicResource SystemControlForegroundBaseMediumBrush}" 
                        FontStyle="Italic"
                        Background="Transparent"
						BorderThickness="0"
						Padding="0"
                        HorizontalAlignment="Left"
						Cursor="Hand"/>
            </StackPanel>
        </Grid>
    </Border>
</UserControl>

Expected behavior

No response

Avalonia version

11.2.1

OS

Windows

Additional context

No response

[timunie]

@nipeone please provide a full minimum sample to reproduce. Also I wonder how you set the data, are you doing it in code behind? Is the image loading async?

[nipeone]

@timunie thks for your reply, i upload code here example code
after running, input anything in search box and then press enter. when search results showed, If you drag the border to change the width of the form, version 11.2.1 will be too laggy But this situation will not occur in version 11.2.0.

[nipeone]

i have found another problem.In 11.1.5, my settings button and theme button icon was displayed perfectly, but in versions 11.2.0 and 11.2.1, there were some missing.
11.1.5:

11.2.*

[MrJul]

The slowness in 11.2.1 is fixed by #17519 - this fix will be part of 11.2.2.

[robloo]

Note that slowness of custom controls has been an older issue as well. I have custom controls that are very slow during debug and blazing fast at release. I seem to recall reading some time ago (By @TomEdwardsEnscape perhaps) there was suspicion that debug outputs, diagnostics or logging were slowing things down quite a bit but I personally never bothered to dig into it more.

Long story short -- do let us know if the above issue doesn't fix the problem.

[nipeone]

@robloo yes, update to 11.2.2, the problem of slowness has addressed.