Local traffic (in your home) doesen’t (or should’nt) count towards your download usage from your ISP
does your router have more than one lan port ? (most have at least 4) if so, i would take the ‘splitter’ out of the loop
connect PC,Cloud and Live Hub directly to your router.
Or you could try connecting the My Cloud to the Live Hub via ethernet and a swtich (by passing the PC)
And use the Live Hub’s copy, move options to transfer the files.
