because it ins't optimised as much mainly because hardware is so much faster and has greater capacity. Back in the 90s you would still see big chunks of OSs an

because it ins't optimised as much mainly because hardware is so much faster and has greater capacity. Back in the 90s you would still see big chunks of OSs and processor intensive applications written in assembly. But as the processors got more efficient and storage and operating RAM wasn’t a limit, programs could achieve the same results with higher level languages and without much effort to optimise, so developers stopped putting in as much effort into it.