Major Mouse Lag/Stuttering

From what you are describing it sounds like there is something running when Windows loads that is causing the mouse to lag and make it seem like the mouse is the culprit. You've essentially eliminated the hardware as the source by the issue happening across 3 different mice.

It's time you take a look at everything running and starting up when your computer does.

I would recommend using Autoruns.

Not sure what all those things are? Go to HERE for help with identifying those pesky startup items.

I haven't tried this yet, but my computer literally starts up within 10 seconds because of the SSD. How should I know what could be causing it when it's loading everything so fast?

Bump.

When you use Autoruns, it will show you everything that is currently running on the computer. There is a tab called Logon
which is everything that comes up when Windows does. Go through that list primarily, using the link I gave you, and try to isolate the problem program.

If you're still unsure, write down the different programs that are listed under that tab and post them here and I will decipher them for you.

EDIT: Just an FYI, It's against forum rules to bump a thread on purpose just to get it seen like you did. We are all working extremely hard to help everyone  

What input devices do you have?

Check the Device Manager and see if you have more than 1 mouse enabled - if you do disable all but the one you want and try it out

I was having much of the same problems. The mouse would randomly stuttered and I could hear window sound from the background, something like "Ta Dum"

I finally had enough and reinstalled Win 7 64bit on my SSD but the same problem still occurred but lessen tremendously.

I did some research and found out the my NIC might be the cause I have and 82579V Intel Network adapter.

After switching mouse and disabling the Network Adapter and switch mouse the problem was gone. I decided to switch back to my old mouse with Network disabled and windows works w/o and stuttering.

When i enabled network again it worked fine for a while then I get the stuttering back.

I updated my Network adapter to the lastest version, hopefully it works without problem.