4.5 is a very good score. That means you were rated with a perfect 5 or nearly so in all six categories the client was asked to rate you on,
That indicates genuine thoughtful consideration on the part of the client. That is better than a straight 5.00 that came about because a client thoughtlessly clicked all fives.
re: "Will this feedback be destructive for my career?"
No. Not destructive. This is good feedback. And it looks authentic.
Freelancers with nothing but straight fives? I know that is not accurate. Nobody is perfect all the time. That just looks fake to me.
re: "Also, should I discuss it with my client as to why he has left a less-than 5 star so I can work better next time?"
Dont do that. You can simply click on your star ratings and see the numbers behind the star average. You can view exactly what you were rated in each category.
Don't pester clients about your star ratings.
