[BUG] Rendering lags badly while resizing Acrylic window

[dietrich-stein]

Using Windows 10 Home and compiling "electron": "26.2.2" with "mica-electron": "^1.5.1" there is so much lag while resizing an acrylic window that it feels broken.

Rather than trying to make it composite faster, the usual fix is to revert to rectangles while resizing. However, I really like what this person managed to pull off as their solution:

https://github.com/wangwenx190/Win32Acrylic/blob/main/Win32/MainWindow.cpp#L144

In a nutshell, using the main window loop, while resizing we receive WM_ENTERSIZEMOVE and it set the blur parameter to the faster ACCENT_ENABLE_BLURBEHIND. When resizing finishes we receive WM_EXITSIZEMOVE and revert it back to ACCENT_ENABLE_ACRYLICBLURBEHIND.

I didn't see anything in dwmExec.cc to suggest that this might be trivial. But, it would be super nice to have some kind of solution.