Poor performance with an ultrawide monitor

[olawangen]

Hi, first time poster here.
I recently formated my PC and reinstalled every single driver. I have bought an ultrawide monitor for the first time and my PC cant handle anything. To use battlefield 1 as an example: I turn everyting to low and turn my res. to 1920x1080. It still lags and looks terrible. This is my current build: (I just ordered 2x4bg ram, to get 16 in total)

https://image.ibb.co/cfE6cd/33995382_10156269472340168_7556345322033643520_n.png

Is my PC just to weak to handle titles like BF1, pubg etc. ? If i want an upgrade, what would should i look at first?

Thank you so much in advance. I'm really bad at these sort of things..

 

[benn]

Yes, GPU is low end. Also battlefield is particularly RAM hungry and likes 16gb.
GPU is the priority with gaming. Buy the best you can afford and sell your current one

 

[cryoburner]

You do have the monitor plugged into the video card, and not directly into the motherboard right? Just checking that you're not on the integrated graphics. : P

Also make sure V-sync is turned off, and for Battlefield 1, make sure it's in DX11 mode in the game's settings, since DX12 tends to perform poorly in that game.