Dell Precision M4500 setup questions

I just got a new M4500 with a Samsung PM800 64GB SSD and a Toshiba 7200RPM storage drive. Both of these drives are set to non-RAID. I noticed when I went into the BIOS that it was set to RAID On instead of AHCI, even though there is no RAID setup between the two drives.

I ran the CrystalDiskUtility and the most it eeks out is at 94%. The built in Performance Utility in Windows 7 currently measures at 6.7

I was told an SSD should equal out to close to 100% and at least 7.0 as benchmarks if I want to utilize all the performance it offers. Is this the best that it can do?

Any info would be most appreciated. Thanks.