bbox is slow - Object Detector Live Stream for Python

[jiyeong08]

I am using this example.
The objects are detected well, but the bbox follows the actual object's movement late.
For example, if a person is moving from left to right, the bbox that detects the person follows the person a few seconds later.
What can I do?

[jiyeong08]

At first, I used the EfficientDet-Lite0 float32 model.
After changing to SSD MobileNetV2 float32, bbox follows the object at the same time.