Femto Mega Body Tracking Requirements

I am working on the Body Tracking problem, using a Femto Mega camera with the Azure Kinect Body Tracking SDK Samples repository. My hardware specifications are: Intel® Core™ i7-9700K CPU @ 3.60GHz, NVIDIA GeForce GTX 1650, and 32GB RAM, Ubuntu 20.04, which meet the requirements as specified on the website. However, when I run the program, there is still a lagging problem with GPU mode. I wonder how I can get the FPS of the algorithm, or if there are any hardware suggestions that can ensure the body tracking algorithm runs without lagging. Thank you very much.