I've had this problem since the CS 1.6 updating began. Before the update I had 99fps constantly, but now it sometimes drops to about 50, especially near explosions and smoke grenades. The second big problem is that I have those ugly blurred textures. I've deleted the Steam folder from my hard drive, reinstalled Counter-Strike many times and I'm really mad.
Well, my fps is improved, but now i'm stuck with another problem. The fps won't go over 60, I know this should be because of vertical sync and i have it off, but it still stays on 60. Textures are still the same.
btw some guy on brutalcs told everyone in the servers that if they were ATI users there where something specific they should do to fix all this shit... it is probably somewhere on fragbite aswell. try fragbite
"If you have a laptop that supports the NVIDIA Optimus technology, here is how you fix possibly fps problems caused by CS no longer being detected as "Counter-Strike" by NVIDIA, but instead as hl.exe (which is ran by the onboard Intel video card):"
You have a laptop, and nvidia gpu, so maybe this is a problem.