I said if you moved/changed the page file I could understand but at least Windows is aware of it. IMO moving/changing the temp environment is not so wise as it would mean roaming must be made aware of such changes and I’m not sure it would look for them without several changes in the registry.
As for the latter point, ram memory works differently to that of Nand, Nand’s states need to be reset once data is wiped while ram’s states are either on or off which gives a speed difference that would have to be synced through it’s or the MB’s memory controllers. With fast NVMe the speed gap is closing or has closed hence development of Direct Storage but it still has it’s issues. Those sync instructions have to come from somewhere and Windows is nothing more than a dumb app that needs to be told what to do.