PAYDAY 2

I had a lot of trouble with a really heavy feeling, laggy mouse.

The main things to do to address that are:

• Limit your framerate to keep it consistent
• Set 'maximum pre-rendered frames' to '1', though your graphics card's control panel (also a good thing to do for control lag in Ikaruga!)
• Experiment with disabling effects.

Those are the rough steps, but you can find better info in the first post of this thread on the Steam forums: Big ol' PAYDAY2 mouse lag thread

• Payday 2 - Select Button forum thread.