Mouse issues when cpu at 100%

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valrog

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Dec 27, 2012
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My mouse starts moving kinda like... i dont know how to explain it. sluggish? its just not smooth and it only happens when cpu usage goes up to 100%. Ive done malware scans and etc. theres no problem. Everything is up uto date as well.
 
Solution
jasonkaler


Have you tried plugging the mouse into different USB ports?
Usually motherboards have a few host controllers built in, and things get slow if a single one is over-utilized.

I noticed that on my machine I had keyboard, mouse and cam all in the same one.
Go to device manager - view - devices by connection.
Make your way down to the usb controllers and you will see what devices are sharing controllers

Mouse drivers could also be an issue.
As a last resort, you...
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jasonkaler

jasonkaler

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Nov 22, 2011
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This is actually fairly normal.
If your cpu's at 100%, its going to battle to even move the mouse pointer around.
Also, 100% cpu often means busses are saturated too - you will experience lag with all devices.
 
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valrog

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Dec 27, 2012
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I guess so. but i dont kno why this is only happening right now. I didnt have anything new or anything. and some games gets my cpu 100% no matter what. like overwatch and etc. fps wise its pretty stable but that 1-2sec that the mouse feels kinda sluggish really screws me up
 
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jasonkaler

jasonkaler

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Nov 22, 2011
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19,365


Have you tried plugging the mouse into different USB ports?
Usually motherboards have a few host controllers built in, and things get slow if a single one is over-utilized.

I noticed that on my machine I had keyboard, mouse and cam all in the same one.
Go to device manager - view - devices by connection.
Make your way down to the usb controllers and you will see what devices are sharing controllers

Mouse drivers could also be an issue.
As a last resort, you could uninstall your driver if you installed the one that comes with the mouse, and use the default windows driver. - mouse drivers may have additional features that use extra cpu
 
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