Looking for suggestion on upgrading my PC. Lately some of the games started to shudder and lag, assuming due to the graphics card. I'm not playing any of 4k games or anything on high quality, but for example Throne and Liberty while loading into the game, I have about 2 min window where nothing have textures and its just shapes of white and black. New World does pretty much the same thing, but that already happens at the character selection screen.

Not trying to change the whole PC, since that would be so expensive, and me being active duty soldier is definitely not an option. I understand that storage could be upgraded too, and probably will add that extra M2 2TB SSD in there, but that's not the main priority. Just trying to see what I should upgrade first and to what. I used to know something about computer parts long time ago, but now I don't even have time to keep up with all technologies. Just trying to play my games on my free time in 1080P with 60FPS, and given that new Stalker coming out, I wont be able to play it even on lowest settings with like 10-15 FPS.

My current stats:

CPU: Intel i5-9600K @ 3.70 GHz, 6 Core

GPU: EVGA GeForce GTX 1060 6GB

Motherboard: MPG Z390 Gaming Edge AC

RAM: Ripjaws G.Skill 16 GB DDR4 (2x8 GB)

Storage: 500 GB SSD / 2 TB HDD

PSU : Corsair HX 1000W

Box: Corsair Obsidian 800D Full Tower

Thank you so much in advance.