capitalism is all about waste. ultimately the reason why is the reign of private property.
i do not see any reason why we should not treat computer resources the same as any other under capitalism.
so perhaps the observation that modern computers are still slow is due to the fact we are wasting significant amounts of their power.
this could be a good direction for the @permacomputer project.
web browsers, mandatory AI at the operating system level, computer languages with huge runtimes... all these are a target for ruthless criticism.