Possible frame-drop on MacOS ?

[jay19240]

Hello, i'm facing to a performance issue on this demo.
The demo is pretty simple, it is intentional to help finding the problem, some events are disabled, multi-rendering texture target disabled etc...

If you move (arrow keys) left or right you can see little jump in the rendering, it is not perfectly smooth, however the profiler don't give me information and stay with a stable fps to 120.

This problem only occured on MacOSX, Windows work fine.
Can you tell me if metrics is normal ?
What can be the origin of this issue ?

Thanks so much for your regards, source code here

Chrome version: 124.0.6367.93
Macbook pro M1

[kainino0x]

As this is a Chrome issue, please file it on https://crbug.com instead, and include your chrome://gpu report, captured right after reproducing the bug.