Problem with old pc

[enki364]

 

Four months ago I purchased the following PC :
Cpu: i5 4690k
mobo: Gigabyte Ga z97 d3h
ram: hyperX savage 8 GB (2x4) 2400 Mhz
gpu: G1 gaming gtx 970
alim: thermaltake 630 watt 80 plus bronze
Hd: western digital blu 1 TB
case: zalman z11 neo
os: windows 7 Professional
And I have a problem with the processor, in some video game like TW3 , lags heavily although I have 53-56 fps when CPU touches 97% and I know perfectly that it's not normal this value , because the GPU remains at 56-60%, Furthermore the processor reaches a temperature of about 70 °, and if I want to play i need to put settings lower than those used by my friends who have an old vga. The processor has the sink stock and it is not oc, I do not understand what the problem is.
I play in 1920x1080 at 60 Hz
-I did not oc
-I tried reinstalling the drives
-I have the stock fan with the thermal paste of stocks already positioned

[jj9987]

Stock cooler won't give any nice temperatures.

Check if any other process is taking up CPU resources in the background.

[enki364]

30 minutes ago, jj9987 said:

Stock cooler won't give any nice temperatures.

Check if any other process is taking up CPU resources in the background.

No there aren't ç_ç