Web UI (HTML/CSS/JS Interface Widgets)

Hi, thanks a lot for your contriburion.
In my project, there was a noticeable frame drop when running the WebUI. So far, I found reason is that bAcceleratedPaint is false on Linux. I want to know why linux doesn’t support accelerated paint? Is this related to CEF? What should I do if I want to support accelerated paint on linux?
My project detail info:
UE: 5.0.3
Platform: Linux