indicators dim and slightly quicker

Just MK1 Campaign  in for mot 

Failed on indicators flashing dim - all 4 bulbs working ok, but slightly quicker flash speed than with hazards warning lights.

Is this just an earth issue ? Anyone else suffered similar?
I might have a spare flasher relay if this might help too

Thanks 

If you replaced the Bulbs in the turns with LED's I would have to ask if you used LED/restive bulbs or added the resistor to the bulbs if the LED replacement bulbs didn't have the resistor.

With out resistance the bulbs flash faster, and the indicator isn't as bright.

Hi - used standard bulbs 

I've swapped relay with a new one and seems to have sorted it 👍😊