Hi NEEDS PARTNER,
Kindly find the specifications for your system model here - http://dell.to/2fsp1zY
To enhance the speed of the system, you would need to upgrade to a SSD from standard HDD.
You could find the compatible memory and SSD here for the system - http://bit.ly/2epvlap
Also, please click my DELL-username and write me a private conversation with the service tag and your Name for case records.
Let us know if you have any other queries.
Not upgradeable: The CPU and GPU.
Upgradeable: hard drive (replace with SSD), Memory (2X 8 = 16 G max).
Replacing the hard drive with an SSD is about the only way you'll speed up this system.