I have a SkyTech Archangel gaming pc and im looking to reach its full potential. Some games seem sluggish and really have bad shuttering at high or ultra settings, eg. rust and pubg, and im not sure where I should start to upgrade. Here are my specs.

AMD RYZEN 3 1200 4-Core 3.1 GHz (3.4 GHz Turbo)

1 TB 7200RPM Hard Drive

A320M Motherboard

Nvidia GeForce GTX 1050 Ti 4GB Video Card

8GB DDR4 2400 Gaming Memory

Windows 10 Home 64-bit

Power by 80 Plus Certified 500 Watt Power Supply