Installation doesn't complete

Oh man yeah those are some really old specs (I haven’t heard of a Phenom since high school), I’m not sure there is much we can do to help you there the build tooling is as bare bones as we can get. Us switching to Vite in Strapi 5 might be easier on your system. Can you try running the Strapi 5 beta and see if that works any better? I wouldn’t advise it for production usage yet but worth trying:

npx create-strapi-app@beta Strapi5Project --quickstart