Are FPS drops normal?

[A13B98]

Just built a new system and I've noticed in games such as league of legends I will have a solid 170-240 fps until playing the game a bit it will drop to 120-130. I'm curious to know if this is normal? I have checked the temperate and nothing is over 40 degrees (during drops)

Gigabyte gtx 970
Intel i5-4660k

 

[X79]

Try turning V-sync on or off, depending on which it was set to first and then make sure your power settings are set to performance.
It's good form to list your entire build as well. You shouldn't have FPS drops in a game as light as League, on such a build.
Lastly, download GeForce Experience from Nvidias website and update your GPU drivers.

 

[A13B98]

Try turning V-sync on or off, depending on which it was set to first and then make sure your power settings are set to performance.
It's good form to list your entire build as well. You shouldn't have FPS drops in a game as light as League, on such a build.
Lastly, download GeForce Experience from Nvidias website and update your GPU drivers.

here is a list of my parts / temperatures.
the drivers are up to date, however vsync was set to 'use 3d application settings'

https://gyazo.com/dbe8635fe5729bec6329a56bc0440394