Hi all, I am booting my new 27" 2013 iMac from a 240GB Corsair Forcs GS (SSD) drive, using a Seagate Thunderbolt adapter. When performing a (blackmagic) write/read test, results stuck at 200 / 300 MB/s. That's much faster than a traditional drive, but to be honest, I was expecting a bit more performance. Attached the speed test, and a screenshot from system information. (in Dutch, but you'll get it, I think ) Is there anything I can do to improve the write/read speeds?