How to increase the FPS and decrease the inference time on STM32H747I-DISCO board?

[FYPChua]

Hi, is there any methods to increase the FPS and decrease the inference time of image classification model on STM32H747I-DISCO board? Currently, my FPS is 1.6 and inference is 626ms. 

I am trying to do this project: https://wiki.st.com/stm32mcu/wiki/AI:How_to_use_Teachable_Machine_to_create_an_image_classification_application_on_STM32