Before we start any optimization, we should have metrics, then we can start to optimize, this way we have clear goal to achieve and to compare with the past.
It’s from the video, before you start it’s important to know what stack we’re talking about
https://www.youtube.com/watch?v=zFoBYfMLUCM
You can read on the title of this section, the ‘outdated’ word, because of this I removed every notes I did and will keep here only the summary of the information from the video you can use in the future:
