Alright so, i recently upgraded my pc with new processor and after that, there have been fps drops. The avg performance have improved with +10 fps, but now i get like 5 second fps drops once a while. I'am not quite sure which causes this and would be nice to have some help 
and also, in most games my gpu usage is only around 60% and i still cant keep up the 60 fps..could this be just bad optimization from games or is it that i lack performance? i got the drivers updated etc. and tried vsync off and on
My specs:
Motherboard: Asus M5A78L-M usb3
Processor: FX-8350 (old one was fx-6100)
Graphic Card: Asus AMD R9 280x
Storage: 1tera HDD, 128gb SSD
ram: 8gb(2x4gb) kingstone 1333mhz
psu: coolermaster gx bronze 550w

and also, in most games my gpu usage is only around 60% and i still cant keep up the 60 fps..could this be just bad optimization from games or is it that i lack performance? i got the drivers updated etc. and tried vsync off and on
My specs:
Motherboard: Asus M5A78L-M usb3
Processor: FX-8350 (old one was fx-6100)
Graphic Card: Asus AMD R9 280x
Storage: 1tera HDD, 128gb SSD
ram: 8gb(2x4gb) kingstone 1333mhz
psu: coolermaster gx bronze 550w