Mizuno Yusho Japan too big?

I am 5’9” (175cm), 180lb (81kg). I ordered a Mizuno Yusho Japan size 3. Jacket and pants look and feel big.

I’m noticing the extra fabric on the jacket, specifically the skirt split is lower than my waist, and the back has a lot of bunching. Sleeves are the right length though.

Pants/trousers are right at the top of my feet.

Should I return these and get a 2.5?