Camera movement not smooth despite everything else being smooth

[Don Falcone]

Title basically, tried uncapped framerate and turned off VSync, tried turning on VSync in Nvidia Control Panel, tried Fast VSync, tried capping framerate to multiples of 60, no difference. Everything looks and feels perfect until the moment I start moving my mouse around and then things seem to slow down as if I'm having constant microstutters while the camera moves around.

This does not happen when moving the character around (thus also moving the camera forward/backward/side to side), only when moving the camera directly using the mouse.

Specs:

GPU: RTX 2080Ti
CPU: i7 9700K
RAM: 2x8GB G.Skill @ 3600MHz
Monitor: ASUS PG279Q 144Hz

[mutantleg]

does it make a difference if you turn on mouse smoothing? (Options->Mouse)
or if you change the mouse data method from raw? (Options->Misc->Mouse Method)

[Don Falcone]

Originally posted by mutantleg:

does it make a difference if you turn on mouse smoothing? (Options->Mouse)
or if you change the mouse data method from raw? (Options->Misc->Mouse Method)

Smoothing lessened the jittery-ness when moving the mouse slowly, still occurs when moving faster

WIndows/Raw mouse input made no difference on its own, but Raw did work better with the following solution:

What did end up working was setting the game to use Raw input, and then using the mouse software (Logitech G Hub) to set the DPI to >= 3600 then lowering the ingame mouse sensitivity to compensate

[mutantleg]

from what I gathered it seems that mouse with high latency can be the cause of this (makes too many windows events) not sure if I can solve it ingame yet
that is if it's the actual cause: does changing the mouse make any difference? (just trying to figure out if it's a system setting or the mouse itself)

[Don Falcone]

Originally posted by mutantleg:

from what I gathered it seems that mouse with high latency can be the cause of this (makes too many windows events) not sure if I can solve it ingame yet
that is if it's the actual cause: does changing the mouse make any difference? (just trying to figure out if it's a system setting or the mouse itself)

Tried MX Master 3S and G502 Hero Plus X, both have the issue if set below 3600 DPI

Could be a Logitech mice issue but I don't have other mice to test with right now

[mutantleg]

it's strange that increasing the DPI solves it - I don't have any mice that even half as high 🤔

[Hans Schmucker]

I've tried reproducing it on any setting... RAW/Win, 800 to 6400 DPI, 125 to 1000hz scan rate.... I can't... and his PC is not much slower than mine.

One thing comes to mind: On my previous PC which was (I think) a 4800k I had the problem in many other games... it turned out it was the microcode patches for Spectre.

I don't want to advise anybody to disable those unless they know what they're doing, but... it could be an issue.

[Random Hero - Allkeyshop]

Please fix that! The game is unplayable at this state. I also have a logitech mouse.

[mutantleg]

Originally posted by Random Hero - Allkeyshop:

Please fix that! The game is unplayable at this state. I also have a logitech mouse.

I have the same question to you first: does it make a difference if you use a different mouse?

also: could both of you (Random and Don) tell me the exact model of mouse you use? (also I assume you are both on win10?)

Hans: do you also use a logitech? also what is a Spectre? 🤔

[Cequelish]

Originally posted by mutantleg:

Originally posted by Random Hero - Allkeyshop:

Please fix that! The game is unplayable at this state. I also have a logitech mouse.

I have the same question to you first: does it make a difference if you use a different mouse?

also: could both of you (Random and Don) tell me the exact model of mouse you use? (also I assume you are both on win10?)

Hans: do you also use a logitech? also what is a Spectre? 🤔

Pretty sure he's talking about the cpu security vulnerability and all the similar flaws since. The fixes they pushed for them always hit performance pretty hard. Lots of articles about it and the performance impacts if that description doesn't ring a bell.

[Hans Schmucker]

Yep, Spectre and Meltdown were/are CPU level vulnerabilities that basically affect process isolation by exploiting (as far as I remember) speculative execution by the CPU. The strange thing about the microcode (basically non persistent CPU firmware) patches on my system in particular was that they badly affected mouse movement in some, but not all, applications or games. To the point were some games became totally unplayable. It affected all mouse models, which I know because I tried a whole bunch before I realized that the mouse drivers were not causing the issue and disabling the microcode patches. I've got a Razor Deathadder Essential nowadays BTW with no noticeable issues aside from the delay introduced by 60hz refresh.

[mutantleg]

I might be able to do something about the 60hz mouse limit - but I'm still waiting for the new hardware for it (at least to confirm it works 🤔 )
there is still some research left: so far I found out if I want to poll the mouse data I need to make a separate invisible window (it's strange because you can poll keyboard data without it - windows is weird 🤔 )

[Don Falcone]

Originally posted by mutantleg:

Originally posted by Random Hero - Allkeyshop:

Please fix that! The game is unplayable at this state. I also have a logitech mouse.

I have the same question to you first: does it make a difference if you use a different mouse?

also: could both of you (Random and Don) tell me the exact model of mouse you use? (also I assume you are both on win10?)

I use G502 Hero Plus X for gaming, on Windows 10, another odd thing that seemed to work was turning Vsync on in the game but forcing it off in NVCP. Still had some jitters but could turn the DPI down and still have a mostly smooth experience

[Random Hero - Allkeyshop]

Originally posted by mutantleg:

Originally posted by Random Hero - Allkeyshop:

Please fix that! The game is unplayable at this state. I also have a logitech mouse.

I have the same question to you first: does it make a difference if you use a different mouse?

also: could both of you (Random and Don) tell me the exact model of mouse you use? (also I assume you are both on win10?)

Hans: do you also use a logitech? also what is a Spectre? 🤔

I can't currently try a different mouse but will do in a few days. I have a g305 and I'm on windows 11.

[Gypopothomas]

I've used a Logitech and Razer mouse. Same problem. When I move with WASD, it's smooth, but when I aim with the mouse, it feels like it's running at a lower FPS. I got used to it, but it would be nice if the whole game was smooth.

[mutantleg]

damn these cost quite a pretty penny 🤔
also one more question for all 3 of you (Don, Random, Gypopo) :
did you experience this with only this game or with multiple games?
(would be nice to know one where it works and one where it's certain it doesn't 🤔 )