Steps to reproduce:

1. Open a Unity URP Project
2. Install the Visual Effect Graph package via Package Manager
3. Drag the attached VFX Graph to your assets
4. Select the VFX Graph asset so the VFX preview displays
5. Click play on the VFX Preview
6. Observe that it plays the VFX smoothly without massive performance decreases or lag
7. Click on the : menu and select 'Convert to Floating Window'
8. Ensure the VFX is playing in the floating window
9. Observe

Actual results: In the floating window, the VFX is extremely laggy. In-order to make it run faster, you have to constantly rotate the preview camera with your mouse cursor

Expected results: The VFX runs as smoothly as it does in the docked preview

Reproducible with versions: 7000.0.0a17, 6000.1.0b5, 6000.0.36f1, 6000.0.0b12

Not reproducible with versions: 6000.0.0b11, 2022.3.56f1, 2021.3.45f1

Can't test with versions: - 

Tested on (OS): Windows 11

Notes: -