So I kind of have a long story. I got my pc on the 3rd of January, 2017. For 6 months I was playing like an idiot and had my hdmi cable running from my monitor to my intel graphics/motherboard, as opposed to my NVidia graphics card. So, about a month ago, I felt like my pc was not getting the fps it should have. So, I noticed that my hdmi cable was not plugged into my graphics card, and I fixed that problem very quickly. Now I was getting 300-400 fps in game (CSGO) on high settings. But, about two weeks after doing that, I noticed the fps had dropped from 300 to about 120 in competitive and deathmatch servers. Sort of like it was before when my hdmi cable was not in the right slot. Now I am at a complete loss and have no idea where to go from here. I used compressed air to clean dust out of my pc, and I checked to see that all of my graphics drivers were up to date. Any ideas?