One point that came with the web stack is the entire "We won't optimize for anything, we just want to release quickly. Disk space is cheap, unused RAM is wasted

One point that came with the web stack is the entire "We won't optimize for anything, we just want to release quickly. Disk space is cheap, unused RAM is wasted RAM, every PC has at least 8 cores" (Maybe a bit hyperbolic, but still somewhat right imo) And this is something that has to be reverted. Sure I don't expect every application to just use C/C++/Rust with carefully hand-optimized algorithms like back then when the C compilers were not that good at optimizing, but at least I would expect applications to be aware of weak hardware