Upgrade PC for Midnight

Here is my PC I have now. I don't have any settings up high usually a 5 and below on the scale. Get like 35 fps tops in Dorn and maybe 70ish tops out in the world in TWW. Looking to see if I can just upgrade a few parts of the PC to bring it up or if I need to start all over. I mainly only play WoW and don't need it overkill for other games. Just want something that will run WoW great, look great, not worry about upgrading for awhile. Wanting to go from 1080p to 1440p.

[https://pcpartpicker.com/user/kaustyk/saved/Xy6XYJ](https://pcpartpicker.com/user/kaustyk/saved/Xy6XYJ)