Question stutters in every games

[XdarkshadowX]

first hello everyone

my spec :
i5 2500 (non-k)

gtx 1050ti

2x8 1600mhz ram

1tb blue

my problem is
I have stutters (every 2 sec my fps drops to 58 for a half sec) in every game I play
by the way the CPU usage always high


I have tried
overclock CPU it gets worse

stoping turbo boost
stoping SpeedStep
stoping sysmain/superfetch
stoping Wsearch
capping frames on 60
vsync off/on
reinstalling Nvidia driver using DDU
updating all drivers
formatting win10 about 10 times
lowering graphics settings doesn't work
in short, I did everything can a human
please help me
the stutters even in cs go

note:
I 've noticed that when i am alone in creative (Fortnite mode) or when I am in cod MW training there is no stutters and i think its a cpu bottleneck but everyone else has the same spec as mine don't have any problems

 

[rgd1101]

make and model of the psu?
cpu/gpu temp and usage during the game?
ram/hdd usage during the game?

 

[XdarkshadowX]

make and model of the PSU?
CPU/GPU temp and usage during the game?
ram/HDD usage during the game?

PSU: Kingston hyper 650w
CPU: 45c usage 65% and spikes to 100%
GPU: 60c usage 40% to 70% (depends on the game)
ram: 7000mb usage 40%
HDD : 0% or 1%
note: i discovered something that my gpu clock is 1750mhz and it should be 1350mhz