Question about realtime frame rate for demo

Hi, thank you for your amazing work!
I'm working on a mini program for gaze tracking in realtime based on l2cs.
The realtime frame rate of this webcam demo is around only 3-4fps on gpu(using pretrained model).
Wondering is it normal or is just my device doesn't perform well due to the setting.
Thanks a lot!

Sure, here's the translation:

I am using an RTX 3060 Ti graphics card, but I am getting 30 FPS.