I have insane mouse lag in Skyrim. I have changed


in Skyrim.ini file and


in Skyrimprefs.ini

But I still have mouse lag and the game is unplayable. What can I do?

  • 3
    Are you 100% sure only the mouse is lagging and not the graphics themselves? Commented Nov 12, 2011 at 0:09
  • Is Vsync on or off?
    – mordi2k
    Commented Nov 12, 2011 at 0:19
  • 1
    Yes, the graphics are fine. graphics does not lag on low, med , high for me even with alot of explosions/fire etc only when i try to turn with mouse i have about less than half a second delay before the character actually reacts to my mouse movement. Any one else have any ideas regarding this?
    – Kim
    Commented Nov 12, 2011 at 1:09
  • 1
    update: The iPresentInterval=0 did seem to fix mouse lag in the menus, but not in the game world.
    – Kim
    Commented Nov 12, 2011 at 1:14
  • 1
    This answer did it for me: gaming.stackexchange.com/questions/34878/…
    – Vaccano
    Commented Nov 14, 2011 at 6:27

2 Answers 2


I had the same problem that you are experiencing and determined that the source of the problem lies with the mouse (for me anyhow). I have the razor naga, and after turning off acceleration in skyrim and also turning off vsync I experienced the same lag. When i would move the mouse rapidly the game could not keep up. After thinking about it I found that the razor naga had an acceleration of its own and after turning off the mouse acceleration directly at the source of the mouse (razer naga control panel "downloadable driver") the game ran perfectly.

  • I have a Razor DeathAdder and am having the same problem how do you turn off mouse acceleration, its the only thing i haven't tried yet.
    – user14121
    Commented Nov 13, 2011 at 2:42
  • If you do not already have the mouse driver installed you must do so. Upon doing this you can click the razor symbol in the bottom right of your screen. There is a check box under the performance section that says enable acceleration. Make sure that this is NOT checked. Also note that this is only part of the problem and you must also turn off vsync and the ingame acceleration.
    – Killuario
    Commented Nov 13, 2011 at 6:44

There are two fixes for mouse lag. There's the one you mentioned, which you should use. There's also this one:

Disable mouse smoothing

  • Go to your Steam Directory, then steamapps, common, skyrim and select Skyrim again.
  • Create a backup of the SkyrimPrefs.ini file.
  • Open the file, then scroll down to where it says [Controls] and find bMouseAcceleration=1.
  • Change to bMouseAcceleration=0.
  • Save, exit, and play.

This fix and the two below are from Skyrim Reddit, and are credited to “Dead man posting” on the Something Awful Forums.

Using both of these worked well for me.

source: http://www.pcgamer.com/2011/11/11/the-elder-scrolls-v-skyrim-tweaks-improve-graphics-disable-vsync-change-fov-and-more/

  • i tried that aswell but the character in game is still around 500ms behind in every movement i do with the mouse
    – Kim
    Commented Nov 12, 2011 at 11:43

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