Surface book 2 15inch poor SSD speeds

[Windows Central Question]

According to a few sources, the Surface book 2 has a PM961 SSD, which has read speeds up to 2800 MB/s and write speeds up to 1600 MB/s. However, upon performing different benchmarks on my Surface, I averaged about 1000 MB/s read speeds and 700 MB/s write speeds. These scores are incredibly low given what it should be capable of. Is there a fix or should I return the device?