PC Not running smooth! GTX 1060 + 7700K

I recently bought a new computer and it played beautifully in the beginning. But after just one month ive noticed that its not as smooth anymore. Example, i cant watch a youtube video while playing cause that makes the game lag. CSGO Runs on 150 fps while Battlefield 1 runs 200-300 fps. Its just weird. Even my last pc with GTX 770 ran better. To note, when i put the pc together i didnt use any of the CDs that came with the Motherboard cause i dont have a disk input.

Any help appreciated!

Setup: Asus Strix Z270H
Intel Core i7-7700K Kaby Lake
ASUS GeForce GTX 1060 6GB DUAL OC
Corsair Vengeance LPX DDR4 3000MHz 16GB

Monitor: BENQ XL2411Z Older ASUS 60hz

Submitted January 31, 2018 at 03:09AM by wbergg http://ift.tt/2rQny1v