csgo mouse lag/sluggish/unsmooth

Hello community , i have mouse lag on csgo every server , like i have 60 fps on 144 hz /or 300 fps with 100 ping feeling like shit with 300-600 fps constant. I have very good internet tbh 500 mb download , 300+ upload , 30-60 ping , fps sometimes drops to 260 270 but rarely. I play very low settings , i tweaked windows 10 by following 10+ videos , i tweaking every nvidia settings/nvidia inspector/launch option by reading your threads here and reddit community.

My Rig:

i7 7700k (4.5GHz fixed every core , 1170 voltage very stable, i tried HPET on/off , i've tried HT on/off)
MSI z270 A-PRO
SK Hynix 2666 MHz (setting by "Memory Try it" ; i;ve tried 2133MHz default)
ASUS GTX 960 2gb STRIX
1TB HDD
256 gb SSD (csgo on SSD; i've tried on HDD aswell but freezing on HDD)
750W PSU Inter-Tech Energon
Mouse: SteelSeries Rival 100 (i've tried sensei raw,za12 zowie , ec-2b everything feeling same)
Monitor: AOC 144 Hz 1ms

OS: Windows 10 1809 version (i;ve tried 1607 version same as this feeling shit on mouse)

What i;ve done :

m_rawinput 0/1
m_yaw 0.0165 / 0.022
500 CPI / 1000 CPI
1000 mhz mouse/500mhz
reinstall csgo/reinstall windows/some tweaks about MSI Supported on regedit / OC CPU / downclock GPU/CPU/changing 5 mouse
I've changed Windows Timer Tool by 0.5 / 1 ms
HPET on/off
HT on/off
CPU delidded (-15 degrees)
DeepCool Maelstrom 240T is my waterrcooler
launch option's tweak / nvidia inspector everything like that
I've tried much things what i read it here on your site or reddit site
I've changed my video settings , mat_queue mode everything , 2xMSAA/4xMSAA same result
XBOX APP unninstalled/off GameMode off/on
Backgrounds apps unninstaled/disabled

I've seen something weird happening when i play csgo my CPU running 40-50 % usage , and my GPU 100% usage. CPU has 56 degrees (maximum target) and GPU (70 degrees target).


Before i had i5 4690 , gtx 960 , same PSU but changed everthing , cpu running 100% usage and GPU when was new as well 100 % usage. I've never seen somthing like that on other rig's. Btw, my fps is very stable and running smooth to 380+ average on uLLetical's benchmark map


My mouse feeling like is very slow , very unsmooth on spraydowns/quaza spray , i can't hit every time good spray / i can't to control my mouse , i'm not silver , i;m global and level 9 faceit but something is wrong here and i can't do anything but i decided to post here maybe someone is god and can help me. My mouse is feeling like it's low priced mouse , like is not steelseries brand.. Feeling like i have 60 fps with 144 hz


Sorry for my english , but i tried to make me understand.
Have a nice day