A hybrid drive, if I understand correctly, is merely a standard hard disk drive - complete with moving heads and revolving platter - that's front-ended by a large (and sometimes non-volatile) cache. As such, you could perhaps expect its performance to be better than a 'regular' drive - but nowhere near what an SSD is capable of. And: the extent to which you'd see any performance improvement at all would depend entirely on how you were using the drive: the point of cache is to store regularly used data to make it accessible more quickly - but if you're not regularly using the same data, it won't do very much for you. Given all of that, I'm not surprised that the WEI is still just 5.9.
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