Problems with The AOpen CDRW2440

Whenever i want to burn a disc it burns it real slow. You should think that with this burner i got Aopen CDRW2440, you could burn a disc in let’s say 4 or 5 minutes. Could It be that this feature Justspeed prevents me from burning faster? I have tried several times to turn it on and of and evend activated or deactivated Justlink(burnproof) but no change. The version i use is nero My computer setup is the following Intel Pentium 3 733 MHz WinME, 512 Ram, Primary Master HD 20 gig, Primary Slave HD 40 gig, Secondary Master CDRW2440 Aopen DMA enabled
Could somebody give me some advice please?