Play games
Choose the game that interests you and play itfor free.
Complete the quests
Every game has some quests for which you will receive Soul Gems.
Receive rewards
You can exchange your Soul Gems for Steam Wallet top-ups, game keys, CS:GO Skins and other rewards.
So what u need to get more fps in csgo is making sure ur resoulotion is at the lowest and everything on low mode.download Razer Game Booster and launch csgo with it.Go on control panel>search bar>Advance>View advance systen setting>Perfomance setting>adjust for best perfomance.hope it helped you