Hi there! My specs: I5 2400; 8gb of ddr3 ram; a Gigabyte Gtx 950 single fan; a Gigabyte H61 mobo and a Corsair Vs 550.
The cpu utilisation used to be lower like 60-70% in the same titles I play right now. For example, I used to run SW Battlefront 2 constantly around 60-70 fps with nvidia's custom settings and now it isn't even playable encountering lots of stuttering and frame drops. The cpu's temperature is around 60-65*C but it hasn't been cleaned for a year or so. Plus, the cpu boost clock is said to be around 3,4 ghz but it stucks at 3.195 ghz and won't go above that. A single solution which seems to ease the problem is turning on v-sync.