XXL RTK NMEA update rate

How do I set the NMEA output update rate for USB output? The default rate is 1Hz. My application needs the fastest possible update rate. thanks,

Please review the product summary https://www.u-blox.com/sites/default/files/NEO-M8P_ProductSummary_(UBX-15015836).pdf

Solution rate for GPS only RTK is 8 Hz, for regular solution and raw .