Solved

Mouse lagg when cpu 100%

My mouse laggs and stutters when CPU usage is high, which is a problem in games.
- e.g. Witcher 3: GPU is pulling 60 frames on ultra fine, while cpu usage is high causing mouse lag which makes it seem there is fps lagg.
- + e.g. in RainbowSix siege, this made it impossible to aim properly. I found a workaround by limiting fps to 65 which reduced CPU usage.
- I tried using a different mouse, no difference
- I looked at several old threads on the internet about this issue, found no solutions that worked
- I did not have this problem on my old pc, so don't tell me it's normal

PC:
cpu: i5-6600k (oc to 4GHz via MSI game boost)
cooling: corsair h50 (cpu temps not problem)
gpu: MSI gtx 1060
mb: MSI pro gaming carbon
ram: 16gb 2133mhz corsair lxp
mouse is wired, has no software
Reply to fxzii
11 answers Last reply Best Answer
More about mouse lagg cpu 100
  1. Are the games using 100% of the CPU themselves or is it 100% overall usage? If it's just the game, that's why your mouse is lagging; the game is eating up so much CPU power that nothing else can get through effectively. Unfortunately, the only way I can think of to fix that is to lower your settings to free up a bit of CPU power so that other things will work.
    Reply to Carnaxus
  2. Sorry, not a solution. My CPU was at high usage on my old pc but I didn't have mouse lag, even when everything else was frozen I could still move my mouse. Lowering settings is absolutely not an option, the 6600k should not be a bottleneck
    Reply to fxzii
  3. So...you checked and that wasn't it?
    Reply to Carnaxus
  4. Carnaxus said:
    So...you checked and that wasn't it?


    It doesn't matter, it shouldn't be like this.
    Reply to fxzii
  5. So basically you asked for help, I gave you something to troubleshoot, but you know best and my suggestions aren't worth your time.

    Come on back when you're willing to actually troubleshoot your issue.
    Reply to Carnaxus
  6. Carnaxus said:
    So basically you asked for help, I gave you something to troubleshoot, but you know best and my suggestions aren't worth your time.

    Come on back when you're willing to actually troubleshoot your issue.


    No, It's 100% overall
    Reply to fxzii
  7. fxzii said:
    My mouse laggs and stutters when CPU usage is high, which is a problem in games.
    - e.g. Witcher 3: GPU is pulling 60 frames on ultra fine, while cpu usage is high causing mouse lag which makes it seem there is fps lagg.
    - + e.g. in RainbowSix siege, this made it impossible to aim properly. I found a workaround by limiting fps to 65 which reduced CPU usage.
    - I tried using a different mouse, no difference
    - I looked at several old threads on the internet about this issue, found no solutions that worked
    - I did not have this problem on my old pc, so don't tell me it's normal

    PC:
    cpu: i5-6600k (oc to 4GHz via MSI game boost)
    cooling: corsair h50 (cpu temps not problem)
    gpu: MSI gtx 1060
    mb: MSI pro gaming carbon
    ram: 16gb 2133mhz corsair lxp
    mouse is wired, has no software


    Set your speeds to stock, you can't troubleshoot a system when it's overclocked.

    Check on your CPU usage, what is using the CPU aside from the game? Are you running recording software in the background? Have browser windows open? Check your hard drive for issues, especially if it's not an SSD?

    You said something about an old PC, has this issue been happening on this new computer since it was build or started later? Is this on a clean Windows setup or did you just move your original hard drive from the old system into this new one?
    Reply to hang-the-9
  8. hang-the-9 said:
    fxzii said:
    My mouse laggs and stutters when CPU usage is high, which is a problem in games.
    - e.g. Witcher 3: GPU is pulling 60 frames on ultra fine, while cpu usage is high causing mouse lag which makes it seem there is fps lagg.
    - + e.g. in RainbowSix siege, this made it impossible to aim properly. I found a workaround by limiting fps to 65 which reduced CPU usage.
    - I tried using a different mouse, no difference
    - I looked at several old threads on the internet about this issue, found no solutions that worked
    - I did not have this problem on my old pc, so don't tell me it's normal

    PC:
    cpu: i5-6600k (oc to 4GHz via MSI game boost)
    cooling: corsair h50 (cpu temps not problem)
    gpu: MSI gtx 1060
    mb: MSI pro gaming carbon
    ram: 16gb 2133mhz corsair lxp
    mouse is wired, has no software


    Set your speeds to stock, you can't troubleshoot a system when it's overclocked.

    Check on your CPU usage, what is using the CPU aside from the game? Are you running recording software in the background? Have browser windows open? Check your hard drive for issues, especially if it's not an SSD?

    You said something about an old PC, has this issue been happening on this new computer since it was build or started later? Is this on a clean Windows setup or did you just move your original hard drive from the old system into this new one?

    No I'm not running anything heavy apart from the game, just a browser and discord open or etc. . And the game was running on my ssd. I can't tell you if it's been since the beginning when I built my pc since I didn't play anything as heavy as witcher, but the mouse lag when i started playing r6s was about two months after I built it. But actually I remember my mouse did lag when cpu usage was high even outside games, very rarely. This is a clean windows install however I've had it practically break before because of my antivirus disinfecting something very aggressively and badly, it took me a really long time to fix it. At one point I reinstalled it (keeping my files) but at the time it didn't fix the issue I was having. Another thing currently is my windows blue screens when I click shut down from time to time, which I haven't really addressed. I feel like the issue here is in software or drivers or something like that.
    Reply to fxzii
  9. Best answer
    So you have a crashing issue also, along with the mouse issue. You may want to start with a clean Windows setup, install drivers clean and test things then, before you install anti-virus or anything else. OS, drivers, the game you have an issue with, see how it works then. If your CPU goes high and you get lag, it may be a hard drive issue, possibly RAM. Do not overclock anything when testing.
    Reply to hang-the-9
  10. Thanks for answering my question, by the way. It's 100% overall, not just the game...yeah, hang-the-9 seems to be taking you in the right direction.
    Reply to Carnaxus
  11. Try using the "ShellExView v1.97" (free)

    - Open ShellExView v1.97
    - Options -> Filter by extension types -> Context menu
    - Disable "TheDeskTopContextMenu Class" (igfxDTCM Module)
    - Options -> Restart explorer

    The weird lagging on desktop gone.
    Reply to TaK Tran
Ask a new question Answer

Read More

Mice Video Games Lag CPUs