Swat 4 TSS game problem.

Problem appeared today.

My game, when I'm playing in Proving grounds or any other server, starts to act strange. It goes like slow motion, for me only. ( This isn't lag ).

Every action done in game are slowed down. For other players it looks normal but for me it's slowed down and affects my play ability a lot.

As example, When I run, it's something like Matrix ( nothing cool about it ), but, meanwhile, I run at the same speed as others, so like I mentioned before, from a side of a view, I look ok.
Another moment when cuffing sus / civillian, I hear the sound when person get's cuffed, but cuffing bar is still loading up for me.

The worst part comes after the round ( when the mission results appears and camera start to spin ). Every 5 seconds the lag get's more stronger and, in the end, I can barely put cursor on the disconnect button.
( When pressing disconnect and heading back to main menu of the Swat, lag disappears completely ).

I had no similar problems before, also, no new programs was installed today that could affect the game or my PC health.

Since we have many smart guys here, I thought that you may have an idea how to solve this.

P.S.

I restarted my PC when this happened for the first time,
Updated Flash Player,
All my drivers ( Video, sound cards etc.. ) are up to date.

So right now, I have no idea what to do.