Yosemite and Blackmagic Speed Test

Hi all, on rMBP 15" with 1tb pci-e, after upgrade to Yosemite and after a clean install, my test on Blackmagic Speed test is around 480 mb/s in writing and 970 mb/s in reading.

With Mavericks my test was around 980/1000 mb/s in writing and the 900mb/s in reading.

Someone can test PCI-E drive on macbook pro retina 15" late 2013 ???

Thanks