Decrease in Performance

[divate]

I recently built a PC.
Specs:
CPU: Ryzen 5 1600
GPU: MSI Nvidea GeForce GTX 1060 6GB OC
RAM: 8x2 2400Mhz Corsair vengence LPX
MoBo: MSI B350 Tomahawk
PSU: CX 600

When i initially run CineBench my score was 1138 (Multiprocessor Score)
when i run the test again after few days it was around 1102
now i got 1089 score, I'm little worried about the performance!
What might be the result and causing it? haven't Installed any bloatware, Please Help Me!

 

[Obakasama]

First thing I would do is check if you've got many background tasks running, stop any unnecessary ones and re-run the test.