Legend of zelda wind waker running slow and lagging on all versions of dolphin

[heartx144]

(04-26-2015, 06:14 AM)NKF98 Wrote: CPU bottleneck. Your computer simply isn't powerful enough to run most Dolphin games at 100%

Thank-you for your answer, but can you tell me what about my computer isn't powerful enough, for future reference.
Try not to use too much technical language though, thanks in advance