Switching to TensorFlow LITE on an existing program

Hello there,

I came here to see if anybody can help me and my friends solve
some problems and doubts about tensorflow

for context, we are depeloping a mask detector with raspberry pi
and tensorflow (normal ver.) however the fps outcome is really low
and we would like to switch to tensorflow LITE to make it
smoother

we already have a code created and works fine except the fps
problem, and it uses tensorflow, how can we start using tensorflow
in our code, and get rid of the normal version?

we thought we could just modify the lines in our code to LITE
version (in case they were different) or if we had to do something
else in order for it to work

i apologise if my explanation was confusing, i’ll provide more
information adn details if needed