Shouldn't it be possible to activate caching on MicroSD?

[Foreverseeking]

Ah sorry, I misread, thought it was read speed. Well you have the same as me, but I have a sandisk 200GB card and I'm not sure of the max write speeds, only the read speeds. Fair enough, then I am not sure! Sorry!

 

[Mastiff]

No worries, as they say down under.