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So for the last couple of weeks I’ve been experiencing really irritating mouse/fps issues. Basically every time my FPS dips below the capped 120 frames per second my mouse will jitter and seem very sluggish when moving.

Initially I thought it was to do with my mouse polling rate, so I adjusted that – to no effect.

The FPS drops can occur, seemingly, at random and regardless of what is running in the background I can’t get the FPS stable.

I’m running Chris’ Maxframes Config (DX8), on a GTX260, Phenom II X2 550 and 4 GB DDR2 RAM

I assume running it on this set-up should pose no issue – although with the current state of performance with TF2 at the moment, I wouldn’t be surprised if I would require a supercomputer comparable to those being developed at IBM to run at a stable 120 FPS.

I am also using a Razer DeathAdder, the respawn edition one, on Windows 7 64Bit with the latest firmware and drivers

This issue only occurs in TF2 and not outside the game – I haven’t tested in any other game as I don’t have any at my disposal.

Any help?

I’m sure I’ve probably missed out some vital information – so just scold me and demand it.

I have a similar setup (w7 64 + deathadder) and this happens to me as well when esl wire is running. Probably not too helpful but make sure that virus isn’t on in the background :|

Didn’t solve the issue

Still experiencing the issue, would like to fix it before it drives me insane.

Try this: DISABLE vsync and ENABLE tripple buffering in the nvidia driver itself. I had similar issues a long time ago and this worked for me.