Why does my computer spike when watching videos and playing games?

Videos-Every 10 or so seconds when watching a video it will spike. Sound will stay but not the video.

Games- I play a game with 3 people against another 3 and when i'm not near enemies i don't lag or spike. When i get near enemies it starts to lag and spike a lot.

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Answers (1)

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No idea maybe the computer is old
on February 13, 2012