The only effect RPM has to a ROTOCON is the temperature rise which the rotating components cause internally, otherwise none!  ROTOCONs remain unaffected in signal quality, communication packet transfer, or its ability to conduct and transmit electrical signals by varying or increased RPM.  ROTOCONs greatly outperform conventional slip rings which suffer from brush wear, carbon build up, brush bounce, and arcing with its unique brushless and maintenance-free design.