Original Post — Direct link
I'm just returning to gaming, and I'm struggling to set up my mouse. I play on a 4K display, with game resolution on 1920 -- my GPU can't handle higher.
The mouse is skippy, moving around in increments of a few pixels. When I drill keeping my crosshairs ADS on the dummies outside Hereford, the aim keeps skipping a few pixels. 3aimtrainer.com is unusable if I do not turn down basic mouse properties\...\pointer speed to 3. With normal settings the crosshair skips around in increments of about 10. Or a lot, anyway.

I've ordered a Delux M625 Game Titan Mouse (PMW3360 Sensor) but before it gets here, I'd like to know: Is this inevitable on a 4K display? Or is it just my laser mouse? Or something else? How do I work out what the issue is?
over 5 years ago - Ubi-Ginge - Direct link
Hey SharkMonkey

Some players report that having software running that uses overlays cause issues with their mouse.
Please disable all background applications / deactive Discord and any other programs using an overlay.
Once this is done, can you test it, and let us know if there is any improvement.
over 5 years ago - Ubi-Ginge - Direct link
It could be using your mouse on a smooth wood surface.
My desk isn't shiny, but it's an absolute nightmare to use a mouse without a mouse mat :/

It could also be worth going through this guide to make sure everything is up to date and to make sure the utilities you have running in the background are not causing this.