Install Razer Game Booster - Disables unneccesary things, mainly ends processes that run in the background and take up memory.Warning: You can be banned for using this client, although the chance is pretty low. Legendary Client - This will improve the RAM usage of your client, and thus make more free RAM available for the game itself. LoLUpdater - Gives you a nice FPS boost by updating things. After loading the config, please adjust the settings to your liking in a custom game. warning: This will change all your keybinds and graphic settings.Full Game Config: Paste this whole preconfigured game.cfg in LoL Directory / Config Download.By disabling this you will get more FPS and thus lower the chance of potential FPS drops / lag spikes. Disable Vertical Synchronization - VSync means that your in-game FPS is synced with the refresh rate of your monitor, which is usually 60 FPS.This can give you some boost as on older computers the sounds are pretty resource-demanding. Set Priority in Task Manager. Open Task Manager by pressing Ctrl + Alt + Delete, locate League of Legends.exe under the processes tab, right click, set priority to High.Lower your resolution - This can be unsuitable for someone, but it will really boost your performance.I present to you my ULTIMATE FPS boost guide. It is normal that with GoS or a potato computer, you will get lower framerate