Desktop Basketball Freestlye Street Basketball Game Flicker, Slow Computer?

Freestlye street basketball game flicker, slow computer? - desktop basketball

I play this game FreeStyle Street Basketball and on my laptop, I also have a desk in my room, so I dumped on this basis and once the download is complete, has been found that if I've finally got the game screen is a flashing character, and I think it's my computer, the computer is an HP Pavilion a230n XP and wondered what to do, I need new graphics card?