High ping bcoz of Sync Every Frame?

[Lennard]

Since I installed Windows 7 on my comp I'm having problems with my ping and fps.
My ping is above 120+ if I turn Sync Every Frame off, and when I turn it off it decreases to around 40. It's the definitely the cause of my problem. That also means I always should have 60 fps. Now it's the fact that when I play in jumping maps or Bash Only server I turn my Sync Every Frame off and just play with high ping to jump, but my fps should be higher too, and I know that for sure. My specs:
Geforce 9600 GT
2 gb ram
3,2 ghz
Windows 7

In some servers (most of em) i can barely get 125 while looking down. My graphics can't be lower and I set some cvar commands to 0 like r_drawsun to increase my fps, but this all doesnt work.
I just updated my drivers so it can't be that what's causing my problem.
The sync every frame thing must be bcoz of windows 7, coz I didn't have this problem on Windows XP..
Any1 knows how to fix this?