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The Intel® SSD DC P3700 Series requires an PCIe 3.0 NVMe slot to achieve a closer to advertised performance.
There are other factors that you must take in consideration when benchmarking a drive. such as if the drive is used as the boot drive, operating system background processes, quantity of data store on the drive, etc.
Your drive shows good results for the current system specifications. We recommend reading the following document to have a better understanding of how benchmarks work for NVMe drives:
- https://www.intel.com/content/dam/www/public/us/en/documents/white-papers/performance-pcie-nvme-ente... Performance Benchmarking for PCIe and NVMe SSDs
Please let us know if there's anything else we can do for you.