:::success It's been a while since I wrote a blog post! (2 year since Fast Convolutional Neural Network with Numpy and Automatic differentiation engine !) Today will be a bit different as I will describe my journey and work during the 2022 edition of the Google Summer Of Code under the supervision of Alexandre Janniaux (unidan) and Jean-Baptiste Kempf (j-b) from the VLC team and Pierre-Loup Cabarat from INSA Rennes. Readers will learn about performance in general, my process of learning new (mostly low-level) materials and software engineering tricks that can be useful in everyday development. I will also dive into the technical coding details I did for this Google Summer Of Code. ::: Shoutout to Tsiry Mayet (Maugrim) for taking the time to read my blog post and give meaningful feedbacks. (even though it isn't his field of expertise !) I/ Learning the materials