I have found the answer to my speed problems. The solution was to install ExpressCache. The SSD is now listed the same way in task manager as in my original post, however, it is used by ExpressCache much like the Intel Rapid Storage Technology would do.
See more here: https://forums.lenovo.com/t5/Lenovo-P-Y-and-Z-series/Guide-ish-Windows-10-Upgrade-Y510p/m-p/2168135/highlight/true#M131461