No, firmware has nothing to do with speeds in this case
You share "time slots"..
Firmware is only used if a problem is identified and the new FW corrects it, but mostly, it is when the CMTS has firmware upgraded and the ISP is looking for a "feature" and this feature is only available when all the network Elements (CM's) have it..
Considering its a 5101, most performance issues have been worked out when it was commercially made available years ago...
You share "time slots"..
Firmware is only used if a problem is identified and the new FW corrects it, but mostly, it is when the CMTS has firmware upgraded and the ISP is looking for a "feature" and this feature is only available when all the network Elements (CM's) have it..
Considering its a 5101, most performance issues have been worked out when it was commercially made available years ago...
Knowledge=Power