i never understood system tests which mix CPU and video card results to make an index containing both things.
The perfect benchmark soft it doesn't exist. Let1kWindowsBloom do a call to a window draw procedure (1000 really) it measure CPU, Video Card, RAM and even ROM, altogether, LOL. 
Plus system responsiveness. this is the main point. As most system extensions and control panels make an insert in the SO main event loop, this app can measure how damage system performance some goodies like controls bar, Kaleidoscope, etc... of course is each user who decide if something is worth or not...
In the case of Cubase sluggish, we first must know is how responsive is the overal system, If Let1kWindowsBloom give us a result of 30 sec, the problem isn't Cubase by it self, but the whole system, LOL
BTW:
_________________________________________________
Benchmark:         CPU & RAM
Version:           1.000
Date/Time:         20 September 2014, 02:05:56 AM
Operating System:  MacOS 9.22
Total Time:        40,256 millisecs (0:40)
Average Speed:     306.0M bytes/second
                     Time   Speed
Memory Copy:        4,918   227.7M/sec
Memory Fill:        6,386   751.6M/sec
Memory Clear:       6,348   756.1M/sec
Memory Equal:       6,270   178.6M/sec
CRC:                4,291   149.1M/sec
Quick Hash:         2,709   236.2M/sec
Secure Hash:        2,560   125.0M/sec
Encryption:         6,774   23.6M/sec