First, read the English article below.

If you have programs like iTunes or a torrent program running in the background, they could be eating up precious system resources.  Check your system tray for programs that may be running in the background. Your graphics card drivers are the software that controls your graphics card and allows it to interface with games. Running outdated drivers can have a big impact on your performance, as drivers are often tweaked in later releases for specific games. Try to make sure you're always running the latest version of your drivers. You can download the latest drivers from the Nvidia, AMD, or Intel website (depending on who manufactured your graphics adapter). See Update Your Video Card Drivers on Windows 7 for detailed instructions. The best way to get a big performance boost from your games is by lowering the graphical settings. This may make the game look a little worse, but can lead to massive gains in frames per second (FPS), which will provide a much smoother experience. Look for some of the following settings in your game's Graphic Options menu for a big impact:  Resolution - Games will look best when they're running at your monitor's native resolution, but you can make a big FPS improvement by dropping the resolution down. The game will look blockier, but should instantly feel smoother. Changing your resolution can give you one of the biggest performance boosts you can get. For example, switching from 1920×1080 to 1600×900 will often give you about a 20% boost in FPS. Anti-aliasing (AA) - This is the technique that smooths out the pixelated edges on objects, making edges look more natural. There are lots of different AA options (MSAA, FSAA, etc.), but for now you just need to know that most of them have a big performance cost. Try turning AA off completely and see how your game plays. If you're getting super-smooth performance and want to try some AA, try FXAA if available first, as this is the cheapest AA solution. Also, stick to 2X or 4X solutions. Texture Quality - If you're getting intermittent... 

Now, please write a short abstract for it in Vietnamese. Abstract:
Đảm rằng không có chương trình nào khác hoạt động khi bạn đang chơi. Cập nhật trình điều khiển card đồ hoạ. Giản lược các cài đặt trong trò chơi. Chạy phiên bản được tối ưu hóa cho phần cứng hoặc trình điều khiển. Tắt cài đặt card đồ họa tích hợp. Tìm kiếm trực tuyến các mod làm tăng hiệu suất. Tham khảo các diễn đàn thảo luận. Quét virus và phần mềm độc hại.