Why is my Ford Fiesta struggling to accelerate?

My car is moving off very slowly and also over revs. In first gear, I put my foot down and the revs are very high but the car only moves slowly. Once I have been driving for a while it becomes better but still has a real lack of power and takes longer than normal to get up to speed.
This reads to me as if the clutch is slipping.
Answered by Honest John on

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