MobileNetv2 slow on phone

Hi, I am trying to run MobileNetv2 on an Android Phone (Fairphone 3) and the best I get speedwise is about 200 ms. I tried both quantized and not quantized. The original MobileNetv2 papers states 75ms on a Pixel 1.

Any clues on what could be the problem here?

on your flow for generating model to be run on mobile, did you apply optimize_for_mobile? Script and Optimize for Mobile Recipe — PyTorch Tutorials 2.0.1+cu117 documentation