Windows PC games are included the most system intensive applications and features available every where today. Even if you have a computer loaded with the latest hardware, you may experience low graphical frame rates and system hiccups when you are playing Windows PC games.
For that you should be aware of that your PC have capability to handle the game fast... Just do some basic things to make your PC clean and fast..Else try Graphics card.
some graphics options are way more significant to performance than others, choose the suitable graphic setting in game.