I try to make my post as short as possbible.
game:
competetive cs go (problem is slightly better at Valorant)
problem:
A short stutter/lag/desync mainly when shooting at enemy, impossible to spray
Mouse floaty, feel of input lag
delayed sound
In general I think the game is playable I still got lvl10 faceit, but I have these phases when its perfect. Its a completely different game.
Online + Offline but I think the offline server is just shit so I dont know really how to test offline. Aim_botz is ok but also not perfect.
I do not know if the problem is internet or other.
BUT:
at night my game is always perfect (around 2 am-5am)
When the game is perfect, it does not matter what settings I change, the game stays perfect. The monitor colours get much stronger, it is very easy to see enemies.
Once in a while, like all 3-4 weeks the problem fixes itself without any changes. That can be 1 hour or 3 days. Then slowly creeps back.
After joining a server, game is always for 15-20 sec perfect
Perfect means: The game is just so much faster, no stutter, no input lag, real 390hz, perfect mouse feeling.
Hardware:
Acer XQ252-QF 390Hz (already tried other)
Ryzen 5600X (already tried other)
MSI B550 Gaming Plus
Gigabyte 5700XT (already tried other)
16 GB Trident Z neo 3600 cl16 (already tried other)
Corsair rm850x
Samsung 960 EVO M2 NVME SSD
Logitech G Pro X (already tried other)
fixes tried
electricity related:
-play from a lifepo4 power station - off grid
-connect all equipment to power station (router,modem) and use media converter, to be completely off grid
-play from a car battery with pure sine inverter
-use a balanced isolation transformer with and without ground
-use self made filter
-try different rooms
internet related:
-change router (Edgerouter)
-Use QOS to eliminate bufferbloat
-Use modem (Vigor 167)
-VDSL2 250mbit (tried VDSL100 mbit with other ISP)
-Use VPNs (WARP+, PIA, Exitlag)
-Use different ethernet adapter (USB-C to Ethernet with Realtek chip which was a fix in another thread)
other:
-use ReviOS, formatted windows 100 times
-all standard fixes I find for the last years who do in the best case nothing
-try to set mouse etc to cores
-set affinities
-play fullscreen
-disable dwm
-prevent GPU from downclock
-general overclock/no overclock
-display scaling/GPU scaling
-many bios settings
-play freesync + RTSS
additional test:
When game is perfect at night
-use power station - perfect
-use socket without anything - perfect
-use isolation transformer - perfect
-with/without VPN - perfect
What I think is the problem:
Honestly I do not fucking know anymore.
More or less it is my last try to fix something, I tried it many years. I think I will just stop playing competetive and wait. But my reactions are not getting better
My internet tests look the same on day and night but I do not know if it is meaningful maybe you have a better suggestion for a test?
About electricity, I played offgrid. Does not change anything.
Maybe it is the game servers that are the problems while daytime.
Maybe it is just some interference from the environment.
I mean with 390hz you really see every problem.
Cheers

