after my first test with only the svbus I had still some doubts.
so I did the same test with the same image but with firadisk.
this video firadisk and video {66} svbus.
and it is roughly like this:
transfer rate: 5300 MB/S VS 5300 MB/S
access time: 0.020 MS VS 0.10 MS
burst rate: 2700 MB/S VS 3800 MB/S
so yes it is better and I will make a permanent image with this driver.