Blurry image in Goggle Meet via browser when using OBS Virtual Camera

OSX version : 10.14.6
OBS version : 26.1
I tried the native OBS Virtual Camera in 3 program (Quicktime , Zoom and Google Meet via browser). In the other two I can have whatever of OBS screen properly displayed (Background image or Video Capture device) in the preview window. But in Google Meet, the resulting preview is blurry.

I attach two picture in Quicktime and Google Meet as comparison.
Quicktime - OBS Virtual Cam Off.png

Meet - OBS Virtual Cam Off.png
 
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