Hi,
Have weird issue with my Deathadder V3 Hyperspeed not going over 1000hz polling rate, I have dongle and was marketed as 8k. But Tried swapping USB ports (2.0, 3.0, 3,2) reinstalling Synapse and so on:
RazerMousePairingUtility
RazerHyperPollingDeviceFirmwareUpdater
RazerUSBHyperspeedDongleUtility
Device Detection Troubleshoot Tool
RazerSynapseInstaller
And after all that still no luck getting it at 8k