3D View laggy if full app is in view

[PerfectlyFineCode]

Describe the bug

3D view is laggy whenever the full application is in view but smooth as butter whenever it is a little out of view.

Example:

Screen.Recording.2025-04-12.131142.mp4

To Reproduce

1. Have a moderately complex application (try FAGallerySample (https://github.com/amwx/FluentAvalonia))
2. Zoom out a little and center it.
3. pan around and it should feel laggy.
4. Now, pan to the left to make 5-10% of the right-side out of view.
5. It should then be buttery smooth.

Expected behavior

It should be buttery smooth at all times.

Version information

2.0.2

OS

Windows

Logs

No response

Additional context

I have a high-end PC, it should not be an issue to render it.

[PerfectlyFineCode]

Seems like /Template/ of Window is the cause.

I am using FluentAvaloniaUI (v2.2.0) package and its style.

I zoomed in till it stops lagging and went back once to where it lags.
And it seems like it is caused by the titlebar buttons (?)

[maxkatz6]

@PerfectlyFineCode is specifically "panning" slow on your machine? I.e. not zooming or rotating. Because that's what I see on my machine (though, it's a macOS, without any managed titlebar).

[PerfectlyFineCode]

@PerfectlyFineCode is specifically "panning" slow on your machine? I.e. not zooming or rotating. Because that's what I see on my machine (though, it's a macOS, without any managed titlebar).

Correct, panning only.