Game View and Frame Debugger output flicker when Frame Debugging is enabled and the image is converging

Steps to reproduce:

1. Open the attached project
2. Open the OutdoorsScene
3. In the Frame Debugger window, enabled Frame Debugging
4. Move the cube in the Scene, to start rendering a new image in the Game view
5. While the image is converging, move the mouse cursor between the Game view and the Frame Debugger windows

Actual results: Game view and Frame Debugger windows flicker if Frame Debugging is enabled while the image is converging

Expected results: Game view and Frame Debugger windows don't flicker

Reproducible with versions: 6000.3.0a1, 6000.3.11f1, 6000.4.1f1, 6000.5.0b1, 6000.6.0a1

Not reproducible with versions: 6000.0.71f1, 6000.2.15f1

Tested on (OS): Windows 11