First of all, hey everyone. I just build a "free" computer with these features; motherboard: MSI 970 AM3+. CPU: AMD Phenom II X2 545. GPU: GTX 1050 2GB. RAM: 4GB. So I believe it has some sort of problem called "bottleneck"; the CPU is too low for GPU so the performance of the computer is really bad, I can't even play most basic games, and I want to play games like BF1/CS:GO or even PUBG. I plan to improve my CPU to AMD FX 8350 8-core and add 4GB RAM, which makes it a total of 8. So as I mentioned before, I had no plan for building a PC, and I have no budget more than 200 dollars right now. Will I able to improve my performance on my PC if I buy these parts? Will it solve my bottleneck and let me play old/present games on medium settings? I have no plans for the future with this PC so it will be great if this computer can manage to hold for a year or two.