I came across this recently which is a fun way of demonstrating how performance can change via using optimised code. It is about running a rebuild if Minecraft

I came across this recently which is a fun way of demonstrating how performance can change via using optimised code. It is about running a rebuild if Minecraft on late 90s early 2000s Macs and showing the huge performance differences. Yes Minecraft is not a great example but it is visually striking. https://www.youtube.com/watch?v=awGVUxl0T0Y https://www.youtube.com/watch?v=awGVUxl0T0Y