Change in eating

Shey is now 3 months and 11 days old and is fed three times a day.
Up until now when I put her food down she eats it so fast she nearly chokes
and finishes the bowl in a couple of minutes.

The last few days her eating habit has changed and often she will eat a lil bit
and come back for some more later,
sometimes I put her food down and she sniffs it and goes back to it later.
She eats about the same amount overall per day as before.

She looks amazing, really nice body and coat is shiny silky smooth
her behaviour, toileting and drinking are normal.
Food is - https://www.skinnerspetfoods.co.uk/product/lamb-rice/

Is this common or should I be worried ?

Quite common - she's twisting you round her little paw & dictating when she eats!

If you put her food down & she leaves it, after about 5 minutes pick it up again and give it back at the next mealtime. Obviously, this should only be done if she's happy & healthy!

She won't starve herself.