So, i launch a game (usually csgo) i do an fps benchmark inside of the game, first time after launching it average framerate is like 300 and after 1-2 hours it is only 100. My cpu and gpu temps are fine, and i do not have a virus. Please help me.
you can sort things, so, the bigger the number when it's biggest to littlest is bad. we need to see screen shots for CPU, Memory, Network and Disk please
There can be many other reasons, Try to check your Task Manager after playing game for 1 hour then minimize it and start your task manager and check if there is there any program which consuming more of your system memory and also try to check your graphic card setting, is it on power saving mode or not!
Usually, you can find your graphics card setting by right clicking on your desktop and also set your system performance on high by going to Control panel -> power options.
you can sort things, so, the bigger the number when it's biggest to littlest is bad. we need to see screen shots for CPU, Memory, Network and Disk please