Mouse lag on my 4k monitor

[Jet1337]

I recently "upgraded" from the ASUS VG248QE to the SAMSUNG UD590 Series U28D590D and I've noticed some mouse lag in my FPS games. My old monitor had a 144Hz refresh rate compared to the new one's, which is 60Hz. Why is my mouse responding slow to this new monitor?

 

[smeezekitty]

If you downgraded from 144hz to 60hz, it might feel laggier.

Also, that is a lot more pixels to move across so when you move the mouse, the cursor/your first person viewpoint will move less percentage of
the screen.

 

[Jet1337]

That's partially true. I noticed right away when I switched monitors that I had to increase the DPI on my mouse, but that's outside of games. Within my games, when I increased the mouse sensitivity, it doesn't help. It feels like my cursor in the menus and my target retical "skate" when I move my mouse, like I don't have precise control. Also, for some weird reason, the mouse lag decreases noticeably when I disable SLI on my three GTX 780s. What's the explanation for that?

 

[HardcoreGamer1]

Sli'ing is pretty laggy. I don't see why you bought a 780 if you could have gotten a Gtx Titan Or a Gtx Titan Z.

 

[smeezekitty]

Sli'ing is pretty laggy. I don't see why you bought a 780 if you could have gotten a Gtx Titan Or a Gtx Titan Z.

Nonsense! A GTX Titan is only slightly ahead of a 780 but grossly overpriced.
Titan Z is just an internally SLI'd (dual GPU) card and would be nearly matched by SLI 780TI

 

[Jet1337]

Sli'ing is pretty laggy. I don't see why you bought a 780 if you could have gotten a Gtx Titan Or a Gtx Titan Z.

Maybe because when I bought my 780s the Titan Z wasn't out yet and the regular titan was overpriced and barely outperformed the my 780.

I eventually figured out my problem in the Nvidia Control Panel when I set the amount of pre-rendered frames to 1. SLI is not laggy. It's using multiple cards to increase performance. Next time don't talk about something like it's a fact if you don't know what it is.

 

[smeezekitty]

^ Picked as a solution for others since you solved your own problem