Bugraaaa :
for example in cs go when first time ı bought the laptop ı can take 150 200 fps but now ı can not take 60 fps
Did you change the operating system or drivers? If this change just happened, look for a system restore point to before the issue started and reset back to that time, see if that helps.
It may also be an issue with the video card or CPU overheating, install HWMonitor and see what the temperatures get to while playing.