basic ways to improve ol gaming

good day all, a novice here. i just want to ask what are those ways to change on your computer settings and in the game settings like CF to have a smooth gaming specifically less lag. i heard about video card,etc. dont have any idea about those. please do help me so that i can somehow know those things and i can also share it to others. hoping for your immediate response. thanks in advance

Try GameBooster & Ccleaner
It works for me.

To enjoy online games is to have a good gaming system. Better upgrade your PC specs (everything inside your computer) and must have a fast internet connection. No need to change whatever settings it is.